Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
345
FNUS56 KPDT 311459
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM PDT THURSDAY FOR
ABUNDANT LIGHTNING FOR FIRE WEATHER ZONE WA695...
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THURSDAY FOR
ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR697, OR698, OR699,
OR700, OR704 AND OR705...
.DISCUSSION...Showers and thunderstorms with abundant lightning expected
across much of the region today with areas of isolated dry thunderstorms.
Thunderstorms are expected every afternoon through the weekend. Gusty
and erratic winds around thunderstorms with gusts of 50-60 mph possible.
Daytime RHs will begin to climb into the 20-30% range with a few isolated
pockets in the Basin below 20%. Diurnally driven winds will persist
with the typical locally isolated breezy winds in the Gaps.
***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.
WAZ695-312315-
East Washington South Central Cascade Mountains-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING...
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers in the morning, then a chance of showers
and thunderstorms in the afternoon.
* Max temperature.....81-90...except 72-81 ridges.
* Min humidity........28-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................10 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......9000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (28-138) increasing to poor to fair
(103-389) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms.
* Min temperature.....55-62...except 52-57 ridges.
* Max humidity........67-82 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 10 mph.
* Ridges/upr slopes....Northwest winds 4 to 10 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Poor to fair (68-300) decreasing to poor
(25-119) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then a slight chance of showers and thunderstorms in the
afternoon.
* Max temperature.....74-82...except 65-74 ridges.
* Min humidity........41-55 percent...except 52-66 percent ridges.
* 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....20 percent (slight chance).
* Mixing height.......6000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (25-149) increasing to poor to fair
(135-327) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers. Mostly clear. Lows 50 to
57. Highs 67 to 82. Northwest winds 3 to 8 mph.
.SUNDAY...Mostly clear. Lows 48 to 55. Highs 66 to 80. West winds
4 to 9 mph.
.MONDAY...Mostly cloudy. Lows 46 to 54. Highs 60 to 74. West
winds 4 to 9 mph.
.TUESDAY...Partly cloudy. Lows 44 to 51. Highs 61 to 75. West
winds 3 to 8 mph.
.WEDNESDAY...Mostly cloudy. Lows 47 to 53. Highs 62 to 76. West
winds 2 to 7 mph.
$$
WAZ690-312315-
Kittitas Valley-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
* Max temperature.....91-98...except 81-92 ridges.
* Min humidity........23-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......11000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor to fair (96-204) increasing to fair to
excellent (427-701) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms.
* Min temperature.....63-68.
* Max humidity........56-71 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest 15 to 20 mph.
* Ventilation Index...Fair (280-486) decreasing to poor (39-145)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms.
* Max temperature.....83-90...except 72-84 ridges.
* Min humidity........35-43 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 10 mph.
* Ridges/upr slopes....Northwest winds 7 to 13 mph shifting to the
west 3 to 7 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (58-178) increasing to fair (266-412) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers. Mostly clear. Lows 59 to
64. Highs 84 to 92. Northwest winds 5 to 11 mph.
.SUNDAY...Mostly clear. Lows 57 to 62. Highs 82 to 90. Northwest
winds 5 to 11 mph.
.MONDAY...Mostly cloudy. Lows 56 to 62. Highs 76 to 84. Northwest
winds 7 to 13 mph.
.TUESDAY...Partly cloudy. Lows 53 to 58. Highs 77 to 85. West
winds 5 to 11 mph.
.WEDNESDAY...Partly cloudy. Lows 55 to 60. Highs 78 to 86. West
winds 3 to 8 mph.
$$
WAZ694-312315-
Yakama Alpine District-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
* Max temperature.....82-92...except 74-84 ridges.
* Min humidity........27-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......9000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (25-93) increasing to poor to fair
(180-398) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms.
* Min temperature.....53-60.
* Max humidity........70-85 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Poor to fair (125-271) decreasing to poor
(25-72) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers and thunderstorms.
* Max temperature.....79-87...except 69-81 ridges.
* Min humidity........36-45 percent...except 42-57 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 6 mph.
* Ridges/upr slopes....West winds 2 to 7 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......6500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-68) increasing to poor to fair
(130-252) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly clear. Lows 51 to 58. Highs 74 to 87. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 49 to 56. Highs 72 to 85. West winds
2 to 7 mph.
.MONDAY...Mostly cloudy. Lows 47 to 55. Highs 66 to 79. West
winds 3 to 8 mph.
.TUESDAY...Partly cloudy. Lows 45 to 52. Highs 67 to 80. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 48 to 55. Highs 68 to 81. West
winds 2 to 7 mph.
$$
ORZ691-WAZ691-312315-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers and thunderstorms.
* Max temperature.....87-98...except 85-93 ridges.
* Min humidity........22-30 percent.
* 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....20 percent (slight chance).
* Mixing height.......10500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (65-157) increasing to fair to good
(402-580) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers and a slight chance of thunderstorms.
* Min temperature.....61-68.
* Max humidity........60-75 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Fair (231-451) decreasing to poor (31-85)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers in the morning. A slight chance of
thunderstorms. A slight chance of showers in the afternoon.
* Max temperature.....85-91.
* Min humidity........28-38 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....20 percent (slight chance).
* Mixing height.......8500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (57-159) increasing to fair (280-454) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly clear. Lows 59 to 65. Highs 86 to 93. West
winds 4 to 9 mph.
.SUNDAY...Mostly clear. Lows 58 to 63. Highs 83 to 91. West winds
5 to 11 mph.
.MONDAY...Mostly cloudy with a slight chance of showers. Lows
56 to 62. Highs 76 to 84. West winds 5 to 11 mph.
.TUESDAY...Partly cloudy. Lows 53 to 59. Highs 80 to 86.
Southwest winds 4 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows 56 to 61. Highs 82 to 88.
Southwest winds 4 to 9 mph.
$$
ORZ692-WAZ692-312315-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers. A
slight chance of thunderstorms in the afternoon.
* Max temperature.....83-92...except 76-82 ridges.
* Min humidity........25-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......10000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (35-125) increasing to fair (298-480) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of thunderstorms in
the evening. A chance of showers. A slight chance of
thunderstorms after midnight.
* Min temperature.....56-64...except 54-59 ridges.
* Max humidity........70-85 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 1 to 6 mph.
* Ridges/upr slopes....Southwest winds 1 to 6 mph.
* CWR.................20 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor to fair (120-250) decreasing to poor
(25-91) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers likely and a slight chance of thunderstorms
in the afternoon.
* Max temperature.....77-86...except 69-75 ridges.
* Min humidity........37-52 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 5 mph.
* Ridges/upr slopes....Southwest winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................40 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......7000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (36-122) increasing to poor to fair
(171-299) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers. Partly cloudy. Lows 53 to
62. Highs 75 to 87. West winds 1 to 6 mph.
.SUNDAY...Mostly clear with a slight chance of showers. Lows
52 to 60. Highs 75 to 85. West winds 2 to 7 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 51 to 59. Highs 66 to 77. West
winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 47 to 55. Highs 70 to 81.
Southwest winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 50 to 58. Highs 72 to 84.
Southwest winds 2 to 7 mph.
$$
ORZ693-WAZ693-312315-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon.
* Max temperature.....86-96...except 80-88 ridges.
* Min humidity........21-27 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 north 3 to 6
mph in the afternoon.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......12500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (25-80) increasing to fair to good
(401-617) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of thunderstorms in
the evening. A chance of showers. A slight chance of
thunderstorms after midnight.
* Min temperature.....54-63.
* Max humidity........71-86 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Southwest winds 2 to 6 mph.
* CWR.................40 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (58-180) decreasing to poor (25-90)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the morning, then showers
likely and a chance of thunderstorms in the afternoon.
* Max temperature.....76-85...except 69-77 ridges.
* Min humidity........41-51 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.................70 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......8000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (27-91) increasing to poor to fair
(166-288) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 51 to 62. Highs 79 to 88.
Terrain driven winds less than 5 mph.
.SUNDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 51 to 60. Highs 78 to 88. West winds 1 to
5 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 51 to 60. Highs 69 to 79. Northwest
winds 1 to 5 mph.
.TUESDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 45 to 55. Highs 73 to 83. Terrain driven
winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 48 to 58. Highs 77 to 86. West
winds 1 to 5 mph.
$$
ORZ701-312315-
Eastern Columbia River Gorge of Oregon-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers.
* Max temperature.....83-88.
* Min humidity........29-44 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph...except west 5
to 11 mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Poor (56-198) increasing to fair (290-432) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers.
* Min temperature.....57-63.
* Max humidity........62-77 percent.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Winds west winds 6 to 12 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 around 15 mph.
* Ventilation Index...Poor to fair (183-345) decreasing to poor
(30-124) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....84-89.
* Min humidity........28-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph...except west 4 to 10
mph in the eastern Columbia River Gorge.
* 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 (44-170) increasing to fair (342-460) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly clear. Lows 55 to 61. Highs 83 to 89. West
winds 4 to 9 mph.
.SUNDAY...Mostly clear. Lows 53 to 59. Highs 80 to 85. West winds
5 to 11 mph.
.MONDAY...Mostly cloudy. Lows 52 to 57. Highs 74 to 79. West
winds 5 to 11 mph.
.TUESDAY...Partly cloudy. Lows 49 to 55. Highs 78 to 83. West
winds 4 to 9 mph.
.WEDNESDAY...Partly cloudy. Lows 53 to 58. Highs 80 to 85. West
winds 3 to 8 mph.
$$
ORZ702-312315-
East Slopes of the Mt. Hood National Forest-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers.
* Max temperature.....80-88...except 73-83 ridges.
* Min humidity........31-46 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 1 to 6 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (26-106) increasing to poor to fair
(138-302) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers.
* Min temperature.....52-61.
* Max humidity........61-76 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 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 10 to 15 mph.
* Ventilation Index...Poor to fair (67-227) decreasing to poor
(25-79) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....82-88...except 73-82 ridges.
* Min humidity........28-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....West winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (25-97) increasing to fair (208-378) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly clear. Lows 50 to 59. Highs 72 to 87. West
winds 1 to 6 mph.
.SUNDAY...Partly cloudy. Lows 49 to 57. Highs 69 to 83. West
winds 2 to 7 mph.
.MONDAY...A slight chance of showers. Mostly cloudy. Lows 47 to
55. Highs 63 to 77. West winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 45 to 52. Highs 67 to 81. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 48 to 56. Highs 70 to 84. West
winds 1 to 6 mph.
$$
ORZ695-312315-
Eagle Cap Wilderness-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers and thunderstorms in the afternoon.
* Max temperature.....80-92...except 70-81 ridges.
* Min humidity........24-37 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 7 mph.
* CWR.................10 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......13000 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (25-103) increasing to fair to good
(230-524) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of thunderstorms in
the evening. A chance of showers. A slight chance of
thunderstorms after midnight.
* Min temperature.....54-61...except 48-55 ridges.
* Max humidity........73-84 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 5 mph.
* CWR.................40 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (56-190) decreasing to poor (25-67)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers likely and a chance of thunderstorms in the
afternoon.
* Max temperature.....72-83...except 61-72 ridges.
* Min humidity........39-53 percent...except 51-66 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................60 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......8500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-67) increasing to poor to fair
(117-263) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers and thunderstorms. Mostly
clear. Lows 47 to 58. Highs 68 to 83. Northwest winds 1 to 5 mph.
.SUNDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 47 to 57. Highs 67 to 82. Northwest winds
1 to 5 mph.
.MONDAY...Mostly cloudy with a chance of showers and
thunderstorms. Lows 45 to 55. Highs 60 to 75. Northwest winds
2 to 7 mph.
.TUESDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 42 to 51. Highs 63 to 78. Southwest winds
1 to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 45 to 54. Highs 67 to 82.
Southwest winds 1 to 6 mph.
$$
ORZ694-312315-
Grande Ronde Valley of Oregon-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers in
the morning. A chance of showers and a slight chance of
thunderstorms in the afternoon.
* Max temperature.....89-94.
* Min humidity........23-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (101-161) increasing to good (518-616)
in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of thunderstorms in
the evening. A chance of showers.
* Min temperature.....57-62.
* Max humidity........79-89 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................30 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (158-240) decreasing to poor
(36-74) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers likely and a chance of thunderstorms in the
afternoon.
* Max temperature.....82-87.
* Min humidity........39-44 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* CWR.................60 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......6500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (61-97) increasing to fair (228-294) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers and thunderstorms. Mostly
clear. Lows 54 to 59. Highs 84 to 89. Northwest winds 1 to 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 53 to 58. Highs 82 to 87. Northwest
winds 2 to 7 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 52 to 57. Highs 74 to 79. Northwest
winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 48 to 53. Highs 79 to 84. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 51 to 56. Highs 83 to 88. West
winds 1 to 6 mph.
$$
ORZ699-312315-
Western Forested Blue Mountains-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...
.TODAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the morning, then a chance of showers and a slight chance of
thunderstorms in the afternoon.
* Max temperature.....81-88...except 75-82 ridges.
* Min humidity........27-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* CWR.................20 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......9000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (42-118) increasing to fair (304-484) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the evening. A chance of showers.
* Min temperature.....51-58.
* Max humidity........74-88 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................40 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (56-192) decreasing to poor (25-62)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers. A chance of thunderstorms in the afternoon.
* Max temperature.....77-84...except 70-78 ridges.
* Min humidity........31-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................20 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......8000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (26-74) increasing to poor to fair
(188-298) in the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers and thunderstorms. Mostly
clear. Lows 50 to 57. Highs 74 to 83. Terrain driven winds less
than 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 50 to 56. Highs 73 to 81. Terrain
driven winds less than 5 mph.
.MONDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 47 to 54. Highs 65 to 74. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 44 to 50. Highs 69 to 78. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 47 to 53. Highs 73 to 82.
Terrain driven winds less than 5 mph.
$$
ORZ696-312315-
John Day Valley-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the morning, then a chance of showers and thunderstorms in the
afternoon.
* Max temperature.....82-90...except 77-82 ridges.
* Min humidity........26-31 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 3
to 6 mph in the afternoon.
* CWR.................10 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......10000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (58-154) increasing to fair to good
(394-572) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the evening. A chance of showers.
* Min temperature.....55-61.
* Max humidity........66-81 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 1 to 5 mph.
* CWR.................50 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor to fair (80-238) decreasing to poor
(25-63) after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon.
* Max temperature.....81-88...except 75-80 ridges.
* Min humidity........24-31 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....20 percent (slight chance).
* Mixing height.......9500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-71) increasing to fair (272-380) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 54 to 60. Highs 80 to 88. Northwest winds 1 to
5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 53 to 58. Highs 78 to 86. Terrain
driven winds less than 5 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 50 to 57. Highs 71 to 79. West
winds 1 to 5 mph.
.TUESDAY...Partly cloudy. Lows 48 to 53. Highs 75 to 83.
Southwest winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy. Lows 50 to 56. Highs 78 to 87.
Southwest winds 1 to 5 mph.
$$
ORZ700-312315-
Central Mountains of Oregon-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...
.TODAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the morning, then a chance of showers and thunderstorms in the
afternoon.
* Max temperature.....81-88...except 75-80 ridges.
* Min humidity........26-32 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* CWR.................10 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......9000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (54-130) increasing to fair to good
(413-543) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the evening, then a slight
chance of showers after midnight.
* Min temperature.....50-58.
* Max humidity........70-85 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 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................40 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor to fair (163-285) decreasing to poor
(25-48) after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
* Max temperature.....81-88...except 74-79 ridges.
* Min humidity........22-27 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....10 percent (very low chance).
* Mixing height.......10000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-58) increasing to fair (249-355) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers. Partly cloudy. Lows 49 to
57. Highs 80 to 87. Northwest winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 48 to 56. Highs 77 to 84. Northwest
winds 2 to 7 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 45 to 53. Highs 71 to 78.
Northwest winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 42 to 50. Highs 75 to 82. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 46 to 53. Highs 79 to 85. West
winds 2 to 7 mph.
$$
ORZ703-312315-
Warm Springs Reservation-
759 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then a slight chance of showers and thunderstorms in the
afternoon.
* Max temperature.....83-92...except 70-80 ridges.
* Min humidity........26-34 percent...except 36-51 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......9000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (46-126) increasing to fair to good
(280-512) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the evening.
* Min temperature.....58-63...except 53-58 ridges.
* Max humidity........60-70 percent.
* Humidity recovery...Moderate...except Good 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 10 to 15 mph.
* Ventilation Index...Poor to fair (146-290) decreasing to poor
(25-77) after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....83-92...except 71-81 ridges.
* Min humidity........22-30 percent...except 30-45 percent ridges.
* 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.......10000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (35-107) increasing to fair (330-484) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly clear. Lows 53 to 59. Highs 79 to 91. West
winds 3 to 8 mph.
.SUNDAY...Partly cloudy. Lows 52 to 58. Highs 75 to 87. West
winds 3 to 8 mph.
.MONDAY...A slight chance of showers. Mostly cloudy. Lows 49 to
56. Highs 69 to 81. West winds 4 to 9 mph.
.TUESDAY...Partly cloudy. Lows 47 to 52. Highs 73 to 85. West
winds 3 to 8 mph.
.WEDNESDAY...Partly cloudy. Lows 51 to 56. Highs 76 to 88. West
winds 2 to 7 mph.
$$
ORZ704-312315-
Northern Deschutes National Forest-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....82-88...except 68-78 ridges.
* Min humidity........29-37 percent...except 41-56 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....West winds 1 to 6 mph.
* CWR.................20 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......9500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (44-132) increasing to fair (272-460) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the evening.
* Min temperature.....49-55.
* Max humidity........66-81 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 5 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....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor to fair (98-230) decreasing to poor
(25-74) after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
slight chance of showers in the afternoon.
* Max temperature.....82-89...except 68-79 ridges.
* Min humidity........24-31 percent...except 32-47 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* 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.......10000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (26-82) increasing to fair (239-333) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Mostly clear. Lows 48 to 54. Highs 72 to 87. West
winds 2 to 7 mph.
.SUNDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 47 to 53. Highs 68 to 83. West winds 2 to
7 mph.
.MONDAY...A slight chance of showers. Mostly cloudy. Lows 44 to
51. Highs 64 to 77. West winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 42 to 47. Highs 68 to 82. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 46 to 51. Highs 71 to 84. West
winds 2 to 7 mph.
$$
ORZ705-312315-
Southern Deschutes National Forest-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers likely and a chance of thunderstorms in the
afternoon.
* Max temperature.....77-82...except 67-75 ridges.
* Min humidity........33-42 percent...except 40-55 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................40 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (42-94) increasing to fair (204-366) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers and a slight chance of thunderstorms in the
evening.
* Min temperature.....44-50.
* Max humidity........82-97 percent...except 71-86 percent ridges.
* Humidity recovery...Excellent...except Good ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (62-144) decreasing to poor (25-34)
after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
slight chance of showers and thunderstorms in the afternoon.
* Max temperature.....78-83...except 68-76 ridges.
* Min humidity........27-33 percent...except 32-44 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....20 percent (slight chance).
* Mixing height.......9500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-37) increasing to fair (221-301) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 44 to 51. Highs 72 to 82. Terrain driven winds less
than 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and
thunderstorms. Lows 44 to 50. Highs 69 to 78. Northwest winds
1 to 5 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 41 to 46. Highs 65 to 74. West
winds 1 to 5 mph.
.TUESDAY...Partly cloudy. Lows 38 to 44. Highs 70 to 79. West
winds 1 to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 42 to 48. Highs 72 to 83. West
winds 1 to 5 mph.
$$
ORZ697-312315-
Central Blue Mountains-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of showers and
thunderstorms in the afternoon.
* Max temperature.....79-84...except 74-80 ridges.
* Min humidity........29-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 5 mph.
* CWR.................20 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......8500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (51-141) increasing to fair (257-435) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a chance of
thunderstorms in the evening, then a slight chance of showers
after midnight.
* Min temperature.....49-55.
* Max humidity........81-96 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 5 mph.
* CWR.................40 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (64-168) decreasing to poor (25-63)
after midnight.
.FRIDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon.
* Max temperature.....77-82...except 70-77 ridges.
* Min humidity........27-37 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....20 percent (slight chance).
* Mixing height.......8000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (26-64) increasing to fair (218-344) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...Partly cloudy with a chance of showers and
thunderstorms. Lows 49 to 54. Highs 73 to 80. Terrain driven
winds less than 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 47 to 53. Highs 72 to 79. Terrain
driven winds less than 5 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 44 to 50. Highs 66 to 72.
Northwest winds 1 to 5 mph.
.TUESDAY...Partly cloudy. Lows 42 to 48. Highs 70 to 77. West
winds 1 to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 46 to 51. Highs 74 to 81. West
winds 1 to 5 mph.
$$
ORZ698-312315-
Southern Blue Mountains-
759 AM PDT Thu Jul 31 2025
...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...
.TODAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the morning, then a chance of showers and thunderstorms in the
afternoon.
* Max temperature.....80-86.
* Min humidity........26-34 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 3
to 6 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 2 to 5 mph.
* CWR.................10 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......10000 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor (86-162) increasing to fair to good
(405-551) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and
thunderstorms in the evening, then a slight chance of showers
after midnight.
* Min temperature.....50-55.
* Max humidity........77-90 percent.
* Humidity recovery...Excellent.
* 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....light winds less than 5 mph.
* CWR.................40 percent.
* Chc of lightning....40 percent (chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor to fair (163-289) decreasing to poor
(25-67) after midnight.
.FRIDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
* Max temperature.....77-82...except 72-77 ridges.
* Min humidity........23-28 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....20 percent (slight chance).
* Mixing height.......9000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (30-60) increasing to fair (279-391) in
the afternoon.
.Forecast days 3 through 7......
.SATURDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 50 to 56. Highs 77 to 84. Terrain driven winds less
than 5 mph.
.SUNDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 48 to 53. Highs 76 to 83. North
winds 1 to 5 mph.
.MONDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 46 to 51. Highs 70 to 77.
Northwest winds 2 to 7 mph.
.TUESDAY...Partly cloudy. Lows 43 to 49. Highs 74 to 81. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 47 to 52. Highs 79 to 85. West
winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Thursday August 7 through Wednesday August 13...
A greater chance of above average temperatures and precipitation.
$$