Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
377
FNUS56 KPDT 140416
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
916 PM PDT Wed Aug 13 2025
...RED FLAG WARNINGS CANCELLED...
...LOCALLY BREEZY WITH LOW RELATIVE HUMIDITY THURSDAY...
.DISCUSSION...Cooler, locally breezy conditions with locally low
relative humidity will be present across the region Thursday.
Confidence in conditions meeting Red Flag thresholds over a
widespread area is too low (<50%) to issue any Red Flag Warnings.
Cooler, wetter weather is very likely (90% confidence) Thursday
night through Saturday. Chances of wetting rain are medium-high
(50-90%) for the Cascades and adjacent east slopes with lower
chances (15-40%) for the Columbia Basin and Eastern Mountains.
***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.
WAZ695-141230-
East Washington South Central Cascade Mountains-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....46-54.
* Max humidity........73-88 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph decreasing to 4 to 9
mph after midnight.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair to good (202-550) decreasing to poor
(25-179) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy. Areas of smoke in the morning.
Hazy.
* Max temperature.....67-77...except 58-68 ridges.
* Min humidity........33-48 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor to fair (40-204) increasing to fair
(211-473) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the evening, then a chance of showers after midnight.
* Min temperature.....52-58...except 48-53 ridges.
* Max humidity........79-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................20 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 15 mph.
* Ventilation Index...Poor to fair (107-369) decreasing to poor to
fair (28-218) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. Showers likely.
* Max temperature.....63-72...except 54-63 ridges.
* Min humidity........61-76 percent...except 72-87 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....Southwest winds 3 to 8 mph.
* CWR.................40 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Southwest around 15 mph.
* Ventilation Index...Poor (25-185) increasing to poor to good
(142-528) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Showers. Lows 50 to 57. Highs 58 to 73. West winds
2 to 7 mph.
.SUNDAY...A slight chance of showers. Partly cloudy. Lows 45 to
51. Highs 62 to 76. West winds 2 to 7 mph.
.MONDAY...Partly cloudy. Lows 46 to 52. Highs 63 to 77. West
winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 47 to 53. Highs 65 to 79. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 46 to 53. Highs 64 to 78. West
winds 2 to 7 mph.
$$
WAZ690-141230-
Kittitas Valley-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy blowing dust in the
evening. Hazy and patchy smoke after midnight.
* Min temperature.....55-60.
* Max humidity........60-75 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 14 to 20 mph with gusts up
to 35 mph decreasing to 7 to 13 mph after midnight.
* Ridges/upr slopes....Northwest winds 16 to 22 mph decreasing to
10 to 16 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 25 mph decreasing to around
15 mph after midnight.
* Ventilation Index...Fair to good (348-602) decreasing to poor
(33-139) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy. Areas of smoke in the morning.
Hazy. Patchy smoke in the afternoon.
* Max temperature.....78-86...except 69-80 ridges.
* Min humidity........23-32 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 11 mph.
* Ridges/upr slopes....Northwest winds 5 to 11 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor to fair (97-227) increasing to fair to
good (457-655) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers after
midnight.
* Min temperature.....58-63.
* Max humidity........65-80 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 7 to 13 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................10 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 20 mph becoming west around
10 mph after midnight.
* Ventilation Index...Fair (231-415) decreasing to poor (30-120)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....74-81...except 64-76 ridges.
* Min humidity........46-60 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....Southwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....Southwest 10 to 15 mph.
* Ventilation Index...Poor (44-116) increasing to fair to good
(385-611) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Showers likely. Lows 58 to 63. Highs 74 to 82.
Southwest winds 4 to 9 mph.
.SUNDAY...Mostly clear. Lows 51 to 56. Highs 76 to 83. West winds
3 to 8 mph.
.MONDAY...Partly cloudy. Lows 53 to 59. Highs 78 to 85. West
winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 54 to 60. Highs 80 to 87. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 54 to 59. Highs 79 to 88.
Northwest winds 4 to 9 mph.
$$
WAZ694-141230-
Yakama Alpine District-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....46-54.
* Max humidity........73-88 percent.
* Humidity recovery...Excellent...except Good ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 35
mph decreasing to 3 to 8 mph after midnight.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 20 mph decreasing to around 10
mph after midnight.
* Ventilation Index...Fair (227-439) decreasing to poor (25-97)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy. Hazy in the afternoon.
* Max temperature.....72-82...except 62-75 ridges.
* Min humidity........25-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (45-165) increasing to fair to good
(308-566) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers after midnight.
* Min temperature.....50-58.
* Max humidity........79-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 20 mph.
* Ventilation Index...Poor to fair (189-401) decreasing to poor
(37-177) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....66-75...except 56-67 ridges.
* Min humidity........57-72 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 4 to 9 mph.
* Ridges/upr slopes....Southwest winds 4 to 9 mph.
* CWR.................20 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Southwest 20 to 25 mph.
* Ventilation Index...Poor to fair (90-270) increasing to fair to
excellent (374-758) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Showers likely. Lows 51 to 58. Highs 63 to 76.
Southwest winds 4 to 9 mph.
.SUNDAY...Partly cloudy with a slight chance of showers. Lows
45 to 53. Highs 66 to 79. West winds 3 to 8 mph.
.MONDAY...Partly cloudy. Lows 46 to 54. Highs 67 to 80. West
winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 47 to 54. Highs 70 to 83. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 47 to 54. Highs 71 to 84. West
winds 2 to 7 mph.
$$
ORZ691-WAZ691-141230-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy blowing dust in the
evening.
* Min temperature.....56-62...except 51-59 ridges.
* Max humidity........65-80 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 12 to 18 mph with gusts up to 30
mph decreasing to 6 to 12 mph after midnight.
* Ridges/upr slopes....West winds 10 to 16 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair to good (388-586) decreasing to poor
(28-90) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny. Hazy.
* Max temperature.....78-87.
* Min humidity........22-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Poor to fair (106-284) increasing to good to
excellent (508-816) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers
after midnight.
* Min temperature.....58-64.
* Max humidity........61-76 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 7 to 13 mph.
* Ridges/upr slopes....Southwest winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair (306-480) decreasing to poor (36-144)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the morning.
* Max temperature.....79-86...except 72-82 ridges.
* Min humidity........37-48 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 6 to 12 mph.
* Ridges/upr slopes....Southwest winds 6 to 12 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Southwest 15 to 20 mph.
* Ventilation Index...Poor to fair (101-241) increasing to good to
excellent (665-975) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy with a chance of showers. Lows 60 to
65. Highs 74 to 81. Southwest winds 5 to 11 mph.
.SUNDAY...Partly cloudy with a slight chance of showers. Lows
54 to 60. Highs 76 to 84. Southwest winds 4 to 9 mph.
.MONDAY...Partly cloudy. Lows 55 to 60. Highs 79 to 86. Southwest
winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 55 to 60. Highs 82 to 89. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 55 to 60. Highs 83 to 89. West
winds 2 to 7 mph.
$$
ORZ692-WAZ692-141230-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....51-58.
* Max humidity........71-86 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 30
mph shifting to the southwest 3 to 8 mph after midnight.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair to good (348-574) decreasing to poor
(25-112) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....73-82...except 66-72 ridges.
* Min humidity........23-31 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Poor to fair (112-266) increasing to fair to
excellent (492-780) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....50-58.
* Max humidity........62-77 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....Southwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 15 mph.
* Ventilation Index...Fair (211-389) decreasing to poor (25-110)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....74-84...except 67-74 ridges.
* Min humidity........35-47 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....Southwest 10 to 15 mph.
* Ventilation Index...Poor (59-195) increasing to fair to good
(456-662) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 53 to 61. Highs 65 to 76. West
winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 50 to 56. Highs 70 to 80. West winds up to
5 mph.
.MONDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 50 to 58. Highs 72 to 83. Terrain driven
winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 51 to 59. Highs 74 to 85. West
winds 1 to 5 mph.
.WEDNESDAY...Mostly clear. Lows 51 to 58. Highs 73 to 84. West
winds 1 to 6 mph.
$$
ORZ693-WAZ693-141230-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....49-59.
* Max humidity........66-81 percent...except 59-70 percent ridges.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Fair to good (319-567) decreasing to poor
(25-119) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....76-86...except 72-80 ridges.
* Min humidity........21-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 7
mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor to fair (61-217) increasing to good to
excellent (515-795) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....48-58.
* Max humidity........59-74 percent...except 52-63 percent ridges.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph in the evening
becoming drainage winds less than 5 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 10 to 15 mph.
* Ventilation Index...Fair (200-350) decreasing to poor (25-94)
after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....77-87...except 72-79 ridges.
* Min humidity........26-36 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 10 mph.
* Ventilation Index...Poor (34-128) increasing to fair to good
(415-627) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and thunderstorms. Partly cloudy.
Lows 52 to 62. Highs 71 to 81. West winds 1 to 6 mph.
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 49 to 58. Highs 74 to 84.
Northwest winds 1 to 5 mph.
.MONDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 50 to 59. Highs 77 to 86. Terrain driven
winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 51 to 60. Highs 80 to 90. Northwest
winds 1 to 5 mph.
.WEDNESDAY...Mostly clear. Lows 50 to 60. Highs 78 to 88.
Northwest winds 1 to 6 mph.
$$
ORZ701-141230-
Eastern Columbia River Gorge of Oregon-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....52-59.
* Max humidity........71-86 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Gusts to 30 mph in the evening. West winds 8
to 14 mph. In the eastern Columbia River Gorge, gusts to 30
mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair to good (343-611) decreasing to poor
(30-158) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-82...except 72-80 ridges.
* Min humidity........28-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph...except west 8 to 14
mph in the eastern Columbia River Gorge. Gusts to 25 mph in
the afternoon. In the eastern Columbia River Gorge, gusts to
30 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (108-330) increasing to fair to
excellent (474-776) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers
after midnight.
* Min temperature.....56-63.
* Max humidity........73-88 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 25
mph decreasing to 2 to 7 mph after midnight. In the eastern
Columbia River Gorge, west winds 7 to 13 mph, Gusts to 30 mph
in the evening.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair to good (319-565) decreasing to poor
(44-198) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....74-79.
* Min humidity........49-64 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....light less than 5 mph becoming west 1 to 5
mph in the afternoon.
* CWR.................10 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....Southwest around 10 mph increasing to west
around 20 mph in the afternoon.
* Ventilation Index...Poor (50-194) increasing to fair to excellent
(326-776) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Showers likely. Lows 57 to 63. Highs 72 to 77. West
winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a slight chance of showers. Lows
52 to 58. Highs 75 to 80. West winds 2 to 7 mph.
.MONDAY...Partly cloudy. Lows 51 to 57. Highs 76 to 81. West
winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 52 to 57. Highs 79 to 85. Northwest
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 51 to 56. Highs 79 to 85. West
winds 2 to 7 mph.
$$
ORZ702-141230-
East Slopes of the Mt. Hood National Forest-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....46-54.
* Max humidity........73-88 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (172-444) decreasing to poor
(25-134) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....73-82...except 67-76 ridges.
* Min humidity........27-35 percent...except 31-46 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Poor (44-192) increasing to fair (231-475) in
the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers
after midnight.
* Min temperature.....50-58.
* Max humidity........74-89 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................10 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 20 mph.
* Ventilation Index...Poor to fair (157-451) decreasing to poor
(26-192) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....71-79...except 64-74 ridges.
* Min humidity........44-55 percent...except 54-69 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................10 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (46-228) increasing to fair to
excellent (272-708) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Showers. Lows 52 to 60. Highs 60 to 75. West winds
1 to 5 mph.
.SUNDAY...Partly cloudy with a slight chance of showers. Lows
47 to 55. Highs 65 to 78. Terrain driven winds less than 5 mph.
.MONDAY...Partly cloudy. Lows 46 to 54. Highs 67 to 80. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 47 to 55. Highs 70 to 83. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 47 to 54. Highs 70 to 84. Terrain
driven winds less than 5 mph.
$$
ORZ695-141230-
Eagle Cap Wilderness-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....50-57...except 44-51 ridges.
* Max humidity........59-74 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Fair (215-407) decreasing to poor (25-89)
after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....72-85...except 63-75 ridges.
* Min humidity........22-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 6
mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (27-125) increasing to fair to good
(423-665) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....49-55...except 43-50 ridges.
* Max humidity........56-68 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 (121-271) decreasing to poor
(25-79) after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....73-85...except 63-74 ridges.
* Min humidity........27-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southwest 2
to 6 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (25-77) increasing to fair to good
(390-622) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and thunderstorms. Partly cloudy.
Lows 48 to 58. Highs 63 to 78. Northwest winds 1 to 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 45 to 55. Highs 66 to 81. Northwest
winds 1 to 5 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 47 to 56. Highs 68 to 83.
Northwest winds 1 to 6 mph.
.TUESDAY...Mostly clear. Lows 49 to 57. Highs 71 to 86. West
winds 1 to 5 mph.
.WEDNESDAY...Mostly clear. Lows 48 to 56. Highs 70 to 85.
Northwest winds 2 to 7 mph.
$$
ORZ694-141230-
Grande Ronde Valley of Oregon-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....51-56.
* Max humidity........75-88 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 7 to 13 mph with gusts up to
25 mph shifting to the northeast 2 to 7 mph after midnight.
* Ridges/upr slopes....Northwest winds 7 to 13 mph shifting to the
north 2 to 7 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Fair to good (408-504) decreasing to poor
(46-98) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....82-87.
* Min humidity........22-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 3
to 7 mph in the afternoon.
* Ridges/upr slopes....North winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (83-157) increasing to good to excellent
(583-773) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....50-55.
* Max humidity........67-79 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 15 mph decreasing to around
5 mph after midnight.
* Ventilation Index...Fair (264-354) decreasing to poor (40-86)
after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....82-87.
* Min humidity........30-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming northwest 3
to 6 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (43-87) increasing to fair to good
(387-579) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and thunderstorms. Mostly cloudy.
Lows 55 to 60. Highs 76 to 81. Northwest winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 50 to 55. Highs 80 to 85. Northwest
winds 2 to 7 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 52 to 57. Highs 83 to 88.
Terrain driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 51 to 56. Highs 85 to 90. Northwest
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 51 to 56. Highs 84 to 89.
Northwest winds 2 to 7 mph.
$$
ORZ699-141230-
Western Forested Blue Mountains-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....48-54.
* Max humidity........72-86 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 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.....West 10 to 15 mph.
* Ventilation Index...Fair (294-450) decreasing to poor (25-71)
after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....75-82...except 69-76 ridges.
* Min humidity........21-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (63-157) increasing to good to excellent
(510-722) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....47-53.
* Max humidity........64-75 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 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.....West 10 to 15 mph.
* Ventilation Index...Fair (225-365) decreasing to poor (25-70)
after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....76-82...except 70-77 ridges.
* Min humidity........30-42 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.....Southwest around 10 mph.
* Ventilation Index...Poor (36-108) increasing to fair to good
(453-641) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and thunderstorms. Mostly cloudy.
Lows 50 to 57. Highs 66 to 75. Terrain driven winds less than
5 mph.
.SUNDAY...Partly cloudy with a chance of showers and
thunderstorms. Lows 47 to 53. Highs 69 to 79. Terrain driven
winds less than 5 mph.
.MONDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 48 to 54. Highs 72 to 81. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 49 to 54. Highs 74 to 84. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 48 to 54. Highs 73 to 83. Terrain
driven winds less than 5 mph.
$$
ORZ696-141230-
John Day Valley-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....51-57.
* Max humidity........68-79 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 11 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 15 mph decreasing to around
5 mph after midnight.
* Ventilation Index...Fair to good (395-583) decreasing to poor
(25-70) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-85...except 72-77 ridges.
* Min humidity........18-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 7
mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (69-153) increasing to good to excellent
(550-778) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....50-57.
* Max humidity........62-73 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 15 mph becoming west around
5 mph after midnight.
* Ventilation Index...Fair (310-488) decreasing to poor (25-77)
after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....78-86...except 73-78 ridges.
* Min humidity........28-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 5
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Poor (38-104) increasing to fair to good
(484-682) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 54 to 60. Highs 71 to 79. West
winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a chance of showers and
thunderstorms. Lows 50 to 56. Highs 74 to 83. Terrain driven
winds less than 5 mph.
.MONDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 51 to 57. Highs 77 to 86. Terrain driven
winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 51 to 56. Highs 79 to 88. Northwest
winds 1 to 5 mph.
.WEDNESDAY...Mostly clear. Lows 51 to 56. Highs 79 to 88.
Northwest winds 1 to 5 mph.
$$
ORZ700-141230-
Central Mountains of Oregon-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....46-54.
* Max humidity........73-86 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 7 to 13 mph with gusts up to
25 mph becoming west 1 to 5 mph after midnight.
* Ridges/upr slopes....Northwest winds 4 to 10 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 15 mph becoming west around
5 mph after midnight.
* Ventilation Index...Fair to good (402-616) decreasing to poor
(25-53) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....78-83...except 71-77 ridges.
* Min humidity........16-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 4
to 9 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 7 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West around 5 mph increasing to around 15 mph
in the afternoon.
* Ventilation Index...Poor (53-119) increasing to good to excellent
(514-738) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....45-55.
* Max humidity........69-84 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 10 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 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.....West 10 to 15 mph.
* Ventilation Index...Fair to good (340-544) decreasing to poor
(25-77) after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....78-83...except 72-77 ridges.
* Min humidity........28-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 7
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Southwest 10 to 15 mph.
* Ventilation Index...Poor (30-132) increasing to good to excellent
(509-785) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 49 to 58. Highs 71 to 77. West
winds 3 to 8 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 46 to 54. Highs 74 to 80. West
winds 2 to 7 mph.
.MONDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 46 to 53. Highs 77 to 83. West winds 2 to
7 mph.
.TUESDAY...Mostly clear. Lows 45 to 53. Highs 80 to 85. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 45 to 53. Highs 79 to 85.
Northwest winds 2 to 7 mph.
$$
ORZ703-141230-
Warm Springs Reservation-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59...except 49-54 ridges.
* Max humidity........70-82 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph with gusts up to 30
mph decreasing to 2 to 7 mph after midnight.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 20 mph decreasing to around 10
mph after midnight.
* Ventilation Index...Fair to good (310-516) decreasing to poor
(25-113) after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....75-85...except 63-73 ridges.
* Min humidity........23-32 percent...except 31-46 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 10 mph.
* Ridges/upr slopes....West winds 4 to 10 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (76-198) increasing to fair to good
(394-676) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers after midnight.
* Min temperature.....57-62...except 52-57 ridges.
* Max humidity........67-80 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 25
mph decreasing to 2 to 7 mph after midnight.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair to good (296-524) decreasing to poor
(37-151) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers.
* Max temperature.....74-84...except 61-72 ridges.
* Min humidity........36-48 percent...except 52-67 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....Southwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Southwest 15 to 20 mph.
* Ventilation Index...Poor (51-181) increasing to good to excellent
(535-831) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 54 to 62. Highs 66 to 79. Southwest
winds 4 to 9 mph.
.SUNDAY...Partly cloudy with a slight chance of showers. Lows
51 to 57. Highs 71 to 81. West winds 2 to 7 mph.
.MONDAY...Partly cloudy. Lows 49 to 55. Highs 74 to 84. West
winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 50 to 55. Highs 76 to 87. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 50 to 55. Highs 76 to 87.
Northwest winds 2 to 7 mph.
$$
ORZ704-141230-
Northern Deschutes National Forest-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....47-54.
* Max humidity........74-89 percent.
* Humidity recovery...Excellent...except Good ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph decreasing to 2 to 6
mph after midnight.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 20 mph decreasing to around 10
mph after midnight.
* Ventilation Index...Fair (232-468) decreasing to poor (25-106)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....76-82...except 63-73 ridges.
* Min humidity........23-30 percent...except 29-43 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (61-193) increasing to fair to good
(333-593) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....47-55.
* Max humidity........73-88 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Fair (237-499) decreasing to poor (34-170)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers.
* Max temperature.....74-79...except 61-71 ridges.
* Min humidity........38-48 percent...except 51-66 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 8
mph in the afternoon.
* Ridges/upr slopes....Southwest winds 5 to 11 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (50-226) increasing to fair to
excellent (457-805) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Showers likely and a slight chance of thunderstorms.
Lows 50 to 57. Highs 61 to 74. West winds 4 to 10 mph.
.SUNDAY...Partly cloudy with a chance of showers. Lows 47 to 53.
Highs 65 to 79. West winds 2 to 7 mph.
.MONDAY...Partly cloudy with a slight chance of showers. Lows
45 to 51. Highs 68 to 81. West winds 1 to 6 mph.
.TUESDAY...Mostly clear. Lows 45 to 51. Highs 71 to 84. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 45 to 50. Highs 71 to 84.
Northwest winds 2 to 7 mph.
$$
ORZ705-141230-
Southern Deschutes National Forest-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....43-49.
* Max humidity........83-98 percent...except 72-87 percent ridges.
* Humidity recovery...Excellent...except Good ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Fair (223-407) decreasing to poor (25-53)
after midnight.
.THURSDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....75-80...except 64-74 ridges.
* Min humidity........18-31 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (55-111) increasing to fair to good
(393-643) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....42-49.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 7 mph in the evening
becoming drainage winds less than 5 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 10 to 15 mph.
* Ventilation Index...Fair (236-446) decreasing to poor (27-79)
after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....74-79...except 63-72 ridges.
* Min humidity........33-45 percent...except 42-57 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 6
mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (43-115) increasing to good to excellent
(500-700) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Lows 46 to 53. Highs 63 to 73. West winds 2 to
7 mph.
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 43 to 49. Highs 66 to 76.
Terrain driven winds less than 5 mph.
.MONDAY...Partly cloudy with a slight chance of showers. Lows
41 to 48. Highs 69 to 79. Terrain driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 41 to 47. Highs 72 to 82. Southwest
winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 41 to 48. Highs 72 to 83. West
winds up to 5 mph.
$$
ORZ697-141230-
Central Blue Mountains-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....46-51.
* Max humidity........69-84 percent.
* Humidity recovery...Excellent...except Good ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Fair to good (365-527) decreasing to poor
(25-74) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-82...except 71-78 ridges.
* Min humidity........17-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 7
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 3 to 7
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (48-118) increasing to good to excellent
(608-898) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....44-50.
* Max humidity........64-79 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 7 mph in the evening
becoming 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.....Northwest 10 to 15 mph.
* Ventilation Index...Fair (254-400) decreasing to poor (25-69)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-82...except 72-78 ridges.
* Min humidity........28-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (31-81) increasing to good to excellent
(567-765) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 48 to 54. Highs 68 to 75. West
winds 1 to 6 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 45 to 51. Highs 71 to 77. Terrain
driven winds less than 5 mph.
.MONDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 46 to 52. Highs 74 to 80. West winds 1 to 5 mph.
.TUESDAY...Mostly clear. Lows 46 to 52. Highs 76 to 83. West
winds 1 to 5 mph.
.WEDNESDAY...Mostly clear. Lows 45 to 51. Highs 76 to 83.
Northwest winds 1 to 5 mph.
$$
ORZ698-141230-
Southern Blue Mountains-
916 PM PDT Wed Aug 13 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....47-53.
* Max humidity........63-78 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Fair to good (486-630) decreasing to poor
(25-77) after midnight.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....78-85.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 7
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 3 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (71-121) increasing to excellent
(824-1042) in the afternoon.
.THURSDAY NIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....45-51.
* Max humidity........61-76 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Fair to good (346-504) decreasing to poor
(27-75) after midnight.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-84.
* Min humidity........22-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (36-78) increasing to good to excellent
(678-810) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 50 to 55. Highs 72 to 80.
Northwest winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 46 to 53. Highs 74 to 81. Northwest
winds 2 to 7 mph.
.MONDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 46 to 52. Highs 78 to 84. West winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 47 to 53. Highs 80 to 87. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 47 to 53. Highs 80 to 87. West
winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Thursday August 21 through Wednesday August 27...
A greater chance of above-normal temperatures and below-normal
precipitation.
$$