Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
873
FNUS56 KPDT 022144
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
244 PM PDT Tue Sep 2 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT WEDNESDAY FOR
ABUNDANT LIGHTNING FOR FIRE WEATHER ZONE OR705 ...
.DISCUSSION...Periodic (10-30%) chances for isolated thunderstorms
with abundant lightning in the afternoon and evening through
Friday, mainly in central Oregon. Unseasonably hot temperatures
will continue in the upper 90s to low 100s for lower elevations in
the Columbia Basin through Thursday. Daytime RHs will trend
downward into the teens and low 20s through Thursday before
gradually improving Friday into next week.
***Thunderstorms imply strong gusty winds***
***Winds are 20 foot 10 minute averages***
***CWR-chance of wetting rain 0.10 or greater***
***Ventilation Index is derived from the
transport wind multiplied by the mixing
height in 100`s of feet. Index categories
are a generalized indicator and users are
encourage to develop criteria that are
suitable and representative of dispersion
conditions in their local area of interest.***
Note: Max transport winds may not occur
at the same time as max mixing height.
WAZ695-031130-
East Washington South Central Cascade Mountains-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear. Hazy. Areas of smoke after
midnight.
* Min temperature.....62-69.
* Max humidity........35-50 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
northwest 1 to 5 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 1 to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (32-92) decreasing to poor (25-70) after
midnight.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Areas of smoke in the morning.
Hazy.
* Max temperature.....89-98...except 81-89 ridges.
* Min humidity........15-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 5 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....North winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-82) increasing to fair (286-470) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. Hazy in the evening.
* Min temperature.....62-69.
* Max humidity........43-58 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor to fair (69-203) decreasing to poor
(25-79) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....87-95...except 78-86 ridges.
* Min humidity........20-30 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming east 1 to 5
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....Northwest around 5 mph shifting to the south
in the afternoon.
* Ventilation Index...Poor (25-60) increasing to fair to good
(348-532) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Partly cloudy. Lows 59 to 65. Highs 77 to 91. Northwest
winds 1 to 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers. Lows 57 to
64. Highs 68 to 83. West winds 1 to 6 mph.
.SUNDAY...Mostly cloudy with a chance of showers. Lows 52 to 59.
Highs 65 to 78. West winds 2 to 7 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 51 to 57.
Highs 63 to 76. West winds 2 to 7 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 49 to 55.
Highs 57 to 70. West winds 2 to 7 mph.
$$
WAZ690-031130-
Kittitas Valley-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear. Hazy.
* Min temperature.....64-72.
* Max humidity........33-48 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
northwest 1 to 6 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 2 to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (49-77) decreasing to poor (28-82) after
midnight.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Hazy. Areas of smoke in the
afternoon.
* Max temperature.....96-102...except 87-97 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....North winds 2 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (30-86) increasing to fair (343-463) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. Hazy and areas of smoke in the
evening.
* Min temperature.....67-73.
* Max humidity........38-53 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 3 to 7 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor to fair (71-237) decreasing to poor
(30-98) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....94-100...except 84-95 ridges.
* Min humidity........16-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph shifting to the
east 2 to 5 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 2 to 7 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....North around 10 mph shifting to the east in
the afternoon.
* Ventilation Index...Poor (25-73) increasing to fair (290-450) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly clear. Lows 64 to 70. Highs 90 to 96. North
winds 2 to 7 mph.
.SATURDAY...Mostly cloudy with a chance of showers. Lows 64 to
71. Highs 82 to 89. West winds 2 to 7 mph.
.SUNDAY...A chance of showers. Mostly cloudy. Lows 59 to 65.
Highs 78 to 85. West winds 2 to 7 mph.
.MONDAY...Mostly cloudy with a slight chance of showers. Lows
57 to 63. Highs 76 to 83. Northwest winds 3 to 8 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 55 to 62.
Highs 70 to 78. Northwest winds 2 to 7 mph.
$$
WAZ694-031130-
Yakama Alpine District-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear. Hazy. Patchy smoke after
midnight.
* Min temperature.....61-70.
* Max humidity........33-48 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
north 1 to 5 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming north 2
to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (36-80) decreasing to poor (25-59) after
midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....92-98...except 83-93 ridges.
* Min humidity........14-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 1
to 5 mph in the afternoon.
* Ridges/upr slopes....Northeast winds 2 to 6 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (25-67) increasing to fair (260-408) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy in the evening.
* Min temperature.....60-69.
* Max humidity........50-65 percent...except 38-53 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
northwest 1 to 5 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming west 1
to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (30-104) decreasing to poor (25-58)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....90-97...except 81-92 ridges.
* Min humidity........18-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming south 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....Northwest around 5 mph shifting to the
southwest in the afternoon.
* Ventilation Index...Poor (25-41) increasing to fair (235-447) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Partly cloudy. Lows 59 to 67. Highs 81 to 93. Northwest
winds 1 to 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers. Lows 57 to
64. Highs 72 to 84. West winds 1 to 6 mph.
.SUNDAY...A chance of showers. Mostly cloudy. Lows 52 to 59.
Highs 70 to 82. West winds 1 to 6 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 50 to 58.
Highs 67 to 79. West winds 1 to 6 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 49 to 56.
Highs 60 to 73. West winds 1 to 5 mph.
$$
ORZ691-WAZ691-031130-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy after midnight.
* Min temperature.....63-69.
* Max humidity........39-54 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 1 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (25-126) decreasing to poor (25-40)
after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....95-102.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* Ridges/upr slopes....North winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....West around 5 mph shifting to the north in
the afternoon.
* Ventilation Index...Poor (25-41) increasing to poor to fair
(140-266) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. Hazy in the evening.
* Min temperature.....65-70.
* Max humidity........45-60 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (37-123) decreasing to poor (25-63)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....95-100.
* Min humidity........17-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 6 mph.
* Ridges/upr slopes....West winds 2 to 7 mph shifting to the north
in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-58) increasing to poor to fair
(169-383) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Partly cloudy. Lows 65 to 70. Highs 91 to 97. Northwest
winds 2 to 7 mph.
.SATURDAY...Mostly cloudy with a chance of showers. Lows 64 to
69. Highs 82 to 88. Southwest winds 3 to 8 mph.
.SUNDAY...A slight chance of showers. Mostly cloudy. Lows 59 to
64. Highs 80 to 86. Southwest winds 4 to 9 mph.
.MONDAY...A slight chance of showers. Mostly cloudy. Lows 58 to
63. Highs 78 to 84. Southwest winds 3 to 8 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 56 to 61.
Highs 72 to 79. Southwest winds 3 to 8 mph.
$$
ORZ692-WAZ692-031130-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....61-71.
* Max humidity........31-46 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (29-143) decreasing to poor (25-46)
after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Hazy.
* Max temperature.....90-99...except 84-90 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Poor (25-44) increasing to fair (214-382) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. Hazy in the evening.
* Min temperature.....62-70.
* Max humidity........32-47 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (49-155) decreasing to poor (25-52)
after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-96...except 82-87 ridges.
* Min humidity........18-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-46) increasing to fair (255-413) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly clear. Lows 60 to 68. Highs 83 to 93. Northeast
winds 1 to 6 mph.
.SATURDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 59 to 66. Highs 74 to 84.
Southwest winds 1 to 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 54 to 61. Highs 70 to 81. Southwest
winds 1 to 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 53 to 60.
Highs 70 to 80. West winds 1 to 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 50 to 57.
Highs 64 to 74. Terrain driven winds less than 5 mph.
$$
ORZ693-WAZ693-031130-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....59-69.
* Max humidity........35-50 percent...except 32-37 percent ridges.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor to fair (122-236) decreasing to poor
(25-53) after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Hazy.
* Max temperature.....92-100...except 85-92 ridges.
* Min humidity........11-16 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 2 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northeast 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14000 ft agl.
* Transport winds.....East around 5 mph shifting to the north in
the afternoon.
* Ventilation Index...Poor (25-49) increasing to fair (320-440) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly clear. Hazy in the evening.
* Min temperature.....59-68.
* Max humidity........30-45 percent...except 29-34 percent ridges.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 5 mph shifting to the
southwest 2 to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor to fair (153-247) decreasing to poor
(25-61) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-98...except 82-89 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 1 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming north 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14500 ft agl.
* Transport winds.....Southwest around 5 mph shifting to the north
in the afternoon.
* Ventilation Index...Poor (25-52) increasing to fair (306-470) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly clear. Lows 57 to 66. Highs 86 to 95. Northeast
winds 1 to 6 mph.
.SATURDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 57 to 66. Highs 76 to 86.
Southwest winds 1 to 6 mph.
.SUNDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 51 to 61. Highs 73 to 82. Southwest
winds 1 to 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 50 to 60.
Highs 72 to 81. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 48 to 57.
Highs 67 to 76. Terrain driven winds less than 5 mph.
$$
ORZ701-031130-
Eastern Columbia River Gorge of Oregon-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy in the evening.
* Min temperature.....63-70.
* Max humidity........39-54 percent...except 36-43 percent ridges.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (34-144) decreasing to poor (26-54)
after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....94-99.
* Min humidity........18-31 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West around 5 mph shifting to the northeast
in the afternoon.
* Ventilation Index...Poor (25-40) increasing to poor to fair
(146-288) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....63-68.
* Max humidity........54-69 percent...except 49-58 percent ridges.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 6 mph...except west 2 to 7
mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....light winds less than 5 mph becoming west 1
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (98-188) decreasing to poor (27-93)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....95-100...except 90-96 ridges.
* Min humidity........21-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph...except west 2 to 7
mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-59) increasing to poor to fair
(172-286) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...A slight chance of showers. Partly cloudy. Lows 62 to
68. Highs 89 to 94. Northwest winds 1 to 6 mph.
.SATURDAY...Not as warm. Mostly cloudy with a chance of showers.
Lows 60 to 65. Highs 78 to 84. West winds 2 to 7 mph.
.SUNDAY...A slight chance of showers. Partly cloudy. Lows 55 to
61. Highs 78 to 83. West winds 2 to 7 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 55 to 60.
Highs 76 to 81. West winds 3 to 8 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 54 to 59.
Highs 70 to 75. West winds 2 to 7 mph.
$$
ORZ702-031130-
East Slopes of the Mt. Hood National Forest-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....63-70.
* Max humidity........33-42 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 10 mph.
* Ventilation Index...Poor (61-165) decreasing to poor (25-48)
after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....91-97...except 84-92 ridges.
* Min humidity........19-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Poor (25-51) increasing to fair (255-427) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers and thunderstorms in the evening.
* Min temperature.....60-68.
* Max humidity........43-58 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (50-140) decreasing to poor (25-54)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....91-97...except 84-92 ridges.
* Min humidity........22-31 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-36) increasing to fair (258-410) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...A slight chance of showers. Mostly cloudy. Lows 60 to
67. Highs 78 to 91. Terrain driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 55 to 63. Highs 69 to 83. Terrain
driven winds less than 5 mph.
.SUNDAY...A chance of showers. Mostly cloudy. Lows 51 to 59.
Highs 68 to 82. West winds 1 to 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 51 to 58.
Highs 65 to 79. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 49 to 56.
Highs 60 to 73. Terrain driven winds less than 5 mph.
$$
ORZ695-031130-
Eagle Cap Wilderness-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....61-68...except 56-65 ridges.
* Max humidity........31-40 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
northeast 2 to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (65-159) decreasing to poor (25-73)
after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....87-97...except 75-86 ridges.
* Min humidity........15-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Poor (25-73) increasing to fair (214-394) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....61-67...except 55-63 ridges.
* Max humidity........31-40 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
northeast 1 to 5 mph after midnight.
* Ridges/upr slopes....Northwest winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (113-213) decreasing to poor
(25-67) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....84-95...except 72-84 ridges.
* Min humidity........17-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....West winds 2 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-52) increasing to fair (255-411) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly clear. Lows 55 to 64. Highs 75 to 90. Northwest
winds 1 to 6 mph.
.SATURDAY...Not as warm. Mostly cloudy with a chance of showers
and a slight chance of thunderstorms. Lows 53 to 62. Highs 64 to
79. Southwest winds 1 to 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 47 to 57. Highs 63 to 78. Terrain
driven winds less than 5 mph.
.MONDAY...A chance of showers. Mostly cloudy. Lows 47 to 56.
Highs 62 to 77. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 44 to 54.
Highs 57 to 72. Terrain driven winds less than 5 mph.
$$
ORZ694-031130-
Grande Ronde Valley of Oregon-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....57-62.
* Max humidity........44-57 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 6 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (167-205) decreasing to poor
(38-68) after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....95-100.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (30-52) increasing to fair (279-351) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....59-64.
* Max humidity........44-55 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 6 mph.
* Ridges/upr slopes....Northwest winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (165-239) decreasing to poor
(41-73) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....92-97.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming north 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (26-50) increasing to fair (322-418) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly clear. Lows 57 to 62. Highs 91 to 96. North
winds 1 to 6 mph.
.SATURDAY...Not as warm. Mostly cloudy with a chance of showers
and a slight chance of thunderstorms. Lows 58 to 63. Highs 80 to
85. Southwest winds 1 to 5 mph.
.SUNDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 52 to 57. Highs 79 to 84. Terrain
driven winds less than 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 51 to 56.
Highs 78 to 83. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 49 to 54.
Highs 72 to 77. Terrain driven winds less than 5 mph.
$$
ORZ699-031130-
Western Forested Blue Mountains-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-66.
* Max humidity........31-43 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 10 mph.
* Ventilation Index...Poor to fair (103-205) decreasing to poor
(25-61) after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....89-94...except 82-89 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....East around 5 mph shifting to the northwest
in the afternoon.
* Ventilation Index...Poor (25-48) increasing to poor to fair
(175-337) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....58-65.
* Max humidity........39-48 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (89-175) decreasing to poor (25-55)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....87-93...except 80-87 ridges.
* Min humidity........18-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (25-41) increasing to fair (282-474) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Partly cloudy with a slight chance of showers. Lows
57 to 64. Highs 79 to 89. Terrain driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 55 to 61. Highs 71 to 80. Terrain
driven winds less than 5 mph.
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 50 to 57. Highs 69 to 78.
Terrain driven winds less than 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 49 to 55.
Highs 68 to 76. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 46 to 53.
Highs 62 to 71. Terrain driven winds less than 5 mph.
$$
ORZ696-031130-
John Day Valley-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy in the evening.
* Min temperature.....61-66.
* Max humidity........32-42 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor to fair (178-298) decreasing to poor
(25-68) after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Max temperature.....89-97...except 84-89 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Poor (25-59) increasing to poor to fair
(131-399) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....60-67.
* Max humidity........41-50 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (82-162) decreasing to poor (25-61)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....88-97...except 84-89 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Southeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Poor (25-36) increasing to poor to fair
(187-341) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 60 to 66. Highs 84 to 92. Terrain driven
winds less than 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 57 to 63. Highs 76 to 84. Terrain
driven winds less than 5 mph.
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 53 to 59. Highs 74 to 83.
Terrain driven winds less than 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 52 to 58.
Highs 72 to 81. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 49 to 55.
Highs 67 to 75. Terrain driven winds less than 5 mph.
$$
ORZ700-031130-
Central Mountains of Oregon-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers and thunderstorms.
* Min temperature.....56-65.
* Max humidity........36-47 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor to fair (160-306) decreasing to poor
(25-49) after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....87-93...except 81-86 ridges.
* Min humidity........17-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Poor (26-70) increasing to fair to excellent
(370-796) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the evening.
* Min temperature.....54-63.
* Max humidity........49-64 percent...except 42-49 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (91-183) decreasing to poor (25-37)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....89-95...except 82-87 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Poor (25-30) increasing to fair (257-477) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 56 to 65. Highs 82 to 89. West winds 1 to
5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 50 to 60. Highs 76 to 82. Southwest
winds 1 to 5 mph.
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 47 to 56. Highs 74 to 81. West
winds 1 to 6 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 47 to 55.
Highs 71 to 78. Southwest winds 1 to 6 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 43 to 53.
Highs 67 to 73. West winds 1 to 6 mph.
$$
ORZ703-031130-
Warm Springs Reservation-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....64-69.
* Max humidity........35-43 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 1 to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (159-255) decreasing to poor
(25-54) after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....90-97...except 79-89 ridges.
* Min humidity........18-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Poor (25-39) increasing to fair (293-445) in
the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the evening.
* Min temperature.....60-65.
* Max humidity........49-61 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming west 2
to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (98-188) decreasing to poor (25-47)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....92-98...except 81-90 ridges.
* Min humidity........18-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-36) increasing to fair (322-466) in
the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 62 to 67. Highs 84 to 93. Northwest winds
1 to 6 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 58 to 63. Highs 74 to 85. West
winds 1 to 6 mph.
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 55 to 60. Highs 74 to 84. West
winds 2 to 7 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 53 to 58. Highs 71 to 81. West
winds 2 to 7 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 52 to 57.
Highs 66 to 75. West winds 2 to 7 mph.
$$
ORZ704-031130-
Northern Deschutes National Forest-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....58-65.
* Max humidity........38-47 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (137-261) decreasing to poor
(25-65) after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers. A
slight chance of thunderstorms in the afternoon.
* Max temperature.....88-94...except 75-85 ridges.
* Min humidity........21-31 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....South winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......10000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Poor (25-47) increasing to fair to good
(322-632) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the evening.
* Min temperature.....54-61.
* Max humidity........51-65 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
southwest 1 to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (55-141) decreasing to poor (25-36)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....90-96...except 77-87 ridges.
* Min humidity........20-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Poor (25-35) increasing to fair to good
(437-631) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 55 to 62. Highs 77 to 90. West
winds 1 to 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 51 to 58. Highs 67 to 81. West
winds 1 to 5 mph.
.SUNDAY...A chance of showers. Partly cloudy. Lows 47 to 55.
Highs 67 to 80. West winds 1 to 5 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 46 to 53. Highs 63 to 77. West
winds 2 to 7 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 44 to 51.
Highs 60 to 72. West winds 1 to 5 mph.
$$
ORZ705-031130-
Southern Deschutes National Forest-
244 PM PDT Tue Sep 2 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT WEDNESDAY FOR
ABUNDANT LIGHTNING...
.TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy in the evening. A slight
chance of showers and thunderstorms.
* Min temperature.....51-59.
* Max humidity........49-64 percent...except 43-53 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming north 2
to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (76-180) decreasing to poor (25-43)
after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers and a slight chance of thunderstorms.
* Max temperature.....84-89...except 74-82 ridges.
* Min humidity........22-30 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Southeast winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......12000 ft agl.
* Transport winds.....South around 10 mph.
* Ventilation Index...Poor (39-83) increasing to excellent
(731-917) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the evening.
* Min temperature.....48-57.
* Max humidity........59-74 percent...except 49-62 percent ridges.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (27-87) decreasing to poor (25-32) after
midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....86-91...except 77-84 ridges.
* Min humidity........20-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Poor (25-28) increasing to good to excellent
(559-731) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 49 to 57. Highs 76 to 83. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 45 to 53. Highs 69 to 78. Terrain
driven winds less than 5 mph.
.SUNDAY...Partly cloudy with a chance of showers. Lows 43 to 49.
Highs 67 to 76. Terrain driven winds less than 5 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 42 to 49. Highs 64 to 73. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 39 to 46.
Highs 61 to 70. Terrain driven winds less than 5 mph.
$$
ORZ697-031130-
Central Blue Mountains-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy.
* Min temperature.....55-62.
* Max humidity........33-43 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (108-170) decreasing to poor (25-58)
after midnight.
.WEDNESDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Max temperature.....82-89.
* Min humidity........16-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-55) increasing to fair to good
(251-517) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....55-61.
* Max humidity........41-52 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (60-118) decreasing to poor (25-55)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....85-90...except 79-86 ridges.
* Min humidity........17-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (25-43) increasing to fair to good
(401-585) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 54 to 60. Highs 78 to 84. Terrain driven
winds less than 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 50 to 57. Highs 71 to 78. Terrain
driven winds less than 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 46 to 52. Highs 69 to 75. Terrain
driven winds less than 5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Lows 45 to 52.
Highs 67 to 74. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 43 to 49.
Highs 63 to 70. Terrain driven winds less than 5 mph.
$$
ORZ698-031130-
Southern Blue Mountains-
244 PM PDT Tue Sep 2 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy. A slight chance of showers and thunderstorms.
* Min temperature.....56-61.
* Max humidity........35-44 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......Near surface.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor to fair (145-239) decreasing to poor
(25-49) after midnight.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....84-91.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....West around 10 mph shifting to the south in
the afternoon.
* Ventilation Index...Poor (29-69) increasing to fair to good
(393-677) in the afternoon.
.WEDNESDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....55-60.
* Max humidity........43-57 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (73-161) decreasing to poor (25-57)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....85-90...except 80-85 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....North around 5 mph shifting to the west in
the afternoon.
* Ventilation Index...Poor (25-38) increasing to fair to good
(481-641) in the afternoon.
.Forecast days 3 through 7......
.FRIDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 54 to 60. Highs 81 to 86. Northwest winds
1 to 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 50 to 56. Highs 75 to 81. West
winds 1 to 6 mph.
.SUNDAY...Partly cloudy with a chance of showers. Lows 47 to 52.
Highs 73 to 79. West winds 1 to 6 mph.
.MONDAY...Mostly cloudy with a slight chance of showers. Lows
46 to 52. Highs 71 to 77. Southwest winds 1 to 6 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Lows 43 to 49.
Highs 67 to 73. West winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Wednesday September 10 through Tuesday September 16...
A greater chance of near to above normal temperatures and above
normal precipitation.
$$