Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
272
FNUS56 KPDT 311333
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
633 AM PDT Sun Aug 31 2025
.DISCUSSION...The current weather pattern supports chances for
periodic, isolated showers and thunderstorms through the midweek,
before a heat wave develops to end the upcoming work week. It
should be noted that the confidence level on the duration and
extent of these showers/storms is on the lower end, but the
weather pattern does support at least the chance of formation
particularly for central Washington this evening and central
Oregon Tuesday night into Wednesday.
***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.
WAZ695-312330-
East Washington South Central Cascade Mountains-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Isolated showers in the
morning. Hazy.
* Max temperature.....82-90...except 72-81 ridges.
* Min humidity........24-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 2
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southeast 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Poor (35-81) increasing to fair to excellent
(386-732) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Areas of smoke in the evening.
Hazy. A slight chance of showers.
* Min temperature.....53-61.
* Max humidity........63-78 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 6 mph.
* Ridges/upr slopes....West winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (63-177) decreasing to poor (25-74)
after midnight.
.LABOR DAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Hazy in the morning.
* Max temperature.....80-89...except 72-80 ridges.
* Min humidity........27-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 1
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southeast 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....West around 5 mph shifting to the southeast
in the afternoon.
* Ventilation Index...Poor (25-60) increasing to fair (221-395) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 56 to 63. Highs 81 to 94. Northwest
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 61 to 67. Highs 82 to 96.
Northwest winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 60 to 66. Highs 79 to 93. West
winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 58 to 65. Highs 74 to 88. West
winds 1 to 6 mph.
.SATURDAY...Partly cloudy. Lows 55 to 62. Highs 70 to 84. West
winds 2 to 7 mph.
$$
WAZ690-312330-
Kittitas Valley-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Isolated showers in the
morning. Hazy.
* Max temperature.....89-95...except 79-90 ridges.
* Min humidity........20-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph shifting to the east
2 to 5 mph in the afternoon.
* Ridges/upr slopes....Northeast winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....North around 10 mph shifting to the southeast
in the afternoon.
* Ventilation Index...Poor (44-100) increasing to fair to good
(286-598) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Areas of smoke in the evening. Hazy. A slight chance of showers.
* Min temperature.....60-68.
* Max humidity........54-69 percent...except 45-58 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor to fair (98-220) decreasing to poor
(37-99) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy. Hazy in the morning.
* Max temperature.....88-93...except 78-89 ridges.
* Min humidity........24-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph shifting to the
east 1 to 6 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 2 to 7 mph shifting to the
east 2 to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....Northwest around 10 mph shifting to the
southeast in the afternoon.
* Ventilation Index...Poor (38-86) increasing to poor to fair
(156-266) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 61 to 69. Highs 92 to 99. North
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 65 to 72. Highs 95 to 101.
Northwest winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 65 to 72. Highs 91 to 98.
Northwest winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 64 to 71. Highs 88 to 95. Northwest
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 62 to 69. Highs 84 to 91.
Northwest winds 3 to 8 mph.
$$
WAZ694-312330-
Yakama Alpine District-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Isolated showers in the morning. Hazy.
* Max temperature.....82-91...except 74-85 ridges.
* Min humidity........21-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 2 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the south
in the afternoon.
* Ventilation Index...Poor (26-62) increasing to fair to good
(261-509) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....52-61.
* Max humidity........61-76 percent.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 6 mph.
* Ridges/upr slopes....West winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (85-171) decreasing to poor (25-54)
after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy. Hazy in the morning.
* Max temperature.....83-91...except 74-85 ridges.
* Min humidity........22-34 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming south 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-41) increasing to poor to fair
(134-330) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 55 to 64. Highs 84 to 96. Northwest
winds 1 to 5 mph.
.WEDNESDAY...Mostly clear. Lows 60 to 67. Highs 86 to 98.
Northwest winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 60 to 67. Highs 83 to 95. West
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 58 to 66. Highs 79 to 90. West
winds 1 to 5 mph.
.SATURDAY...Partly cloudy. Lows 54 to 62. Highs 75 to 87. West
winds 1 to 6 mph.
$$
ORZ691-WAZ691-312330-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Isolated showers in the
morning. Hazy.
* Max temperature.....88-96.
* Min humidity........20-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 2 to 5 mph shifting to the
southeast 2 to 7 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (25-59) increasing to poor to fair
(142-312) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers in
the evening. Hazy.
* Min temperature.....60-65.
* Max humidity........55-70 percent.
* Humidity recovery...Moderate.
* 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 around 10 mph.
* Ventilation Index...Poor (47-181) decreasing to poor (27-65)
after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy. Hazy in the morning.
* Max temperature.....89-95.
* Min humidity........21-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....Southwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Poor (25-90) increasing to poor to fair
(118-212) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 61 to 66. Highs 94 to 99. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 65 to 70. Highs 95 to 101.
Northwest winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 65 to 70. Highs 93 to 99.
Southwest winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 65 to 70. Highs 89 to 95. Southwest
winds 2 to 7 mph.
.SATURDAY...Mostly cloudy. Lows 62 to 67. Highs 86 to 92.
Southwest winds 3 to 8 mph.
$$
ORZ692-WAZ692-312330-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy. Hazy.
* Max temperature.....88-95...except 82-87 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 2 to 7 mph.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14500 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Poor (40-114) increasing to good to excellent
(605-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....57-67.
* Max humidity........36-51 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Southeast winds 1 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Poor to fair (80-212) decreasing to poor
(25-43) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....87-95...except 82-88 ridges.
* Min humidity........17-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Poor (25-47) increasing to poor to good
(172-628) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 59 to 68. Highs 87 to 97. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 60 to 68. Highs 85 to 95. North
winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 60 to 68. Highs 84 to 95. South
winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 60 to 68. Highs 80 to 90. Southwest
winds 1 to 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
59 to 67. Highs 76 to 86. Southwest winds 1 to 5 mph.
$$
ORZ693-WAZ693-312330-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....88-97...except 81-90 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 2 to 7 mph.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......15000 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Poor (35-147) increasing to excellent
(979-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....58-67.
* Max humidity........31-43 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 1 to 6 mph.
* Ridges/upr slopes....Southeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Fair (219-311) decreasing to poor (25-72)
after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....90-99...except 83-91 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
5 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14500 ft agl.
* Transport winds.....South around 10 mph.
* Ventilation Index...Poor (25-90) increasing to fair to excellent
(477-993) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 58 to 67. Highs 90 to 99. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 58 to 67. Highs 87 to 97. East
winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 58 to 67. Highs 86 to 96.
Southwest winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 57 to 66. Highs 83 to 92. Southwest
winds 1 to 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
55 to 66. Highs 78 to 87. Southwest winds 1 to 5 mph.
$$
ORZ701-312330-
Eastern Columbia River Gorge of Oregon-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....85-90...except 80-88 ridges.
* Min humidity........26-41 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph...except
northwest 4 to 9 mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (28-104) increasing to fair (270-374) in
the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....55-60.
* Max humidity........68-83 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.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor to fair (131-243) decreasing to poor
(30-104) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....86-91...except 81-88 ridges.
* Min humidity........27-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph in the morning
becoming upslope less than 5 mph. In the eastern Columbia
River Gorge, west winds 3 to 8 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....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (25-116) increasing to poor to fair
(126-212) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 57 to 62. Highs 93 to 98. West
winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy. Lows 64 to 69. Highs 94 to 99.
Terrain driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 63 to 68. Highs 91 to 96. West
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 61 to 66. Highs 87 to 92. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 58 to 63. Highs 83 to 88. West
winds 2 to 7 mph.
$$
ORZ702-312330-
East Slopes of the Mt. Hood National Forest-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Areas of smoke in the morning. Hazy.
* Max temperature.....84-90...except 76-84 ridges.
* Min humidity........25-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 1 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming north 2 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Poor (25-43) increasing to poor to fair
(189-329) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....51-59.
* Max humidity........57-72 percent.
* Humidity recovery...Moderate...except Good ridges.
* 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....West winds 2 to 7 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...Poor (61-187) decreasing to poor (25-61)
after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy. Hazy in the morning.
* Max temperature.....84-90...except 77-85 ridges.
* Min humidity........27-39 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.......5500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-43) increasing to poor to fair
(122-204) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 55 to 62. Highs 83 to 96. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 61 to 69. Highs 83 to 97.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy. Lows 60 to 67. Highs 81 to 95. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 58 to 66. Highs 77 to 90. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy. Lows 54 to 62. Highs 73 to 86. Terrain
driven winds less than 5 mph.
$$
ORZ695-312330-
Eagle Cap Wilderness-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....82-93...except 70-82 ridges.
* Min humidity........16-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 3 to 8 mph.
* Ridges/upr slopes....South winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14000 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Poor (50-180) increasing to excellent
(950-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....60-67...except 55-63 ridges.
* Max humidity........28-38 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 7 mph.
* Ridges/upr slopes....Southeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Southeast around 10 mph.
* Ventilation Index...Poor to fair (171-299) decreasing to poor
(25-78) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....84-95...except 73-84 ridges.
* Min humidity........16-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 2 to
7 mph in the afternoon.
* Ridges/upr slopes....South winds 3 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Poor (27-117) increasing to good to excellent
(571-949) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 57 to 65. Highs 79 to 94. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 56 to 65. Highs 77 to 92.
Northeast winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 55 to 63. Highs 76 to 91. West
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 54 to 63. Highs 72 to 87. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
52 to 62. Highs 67 to 82. Southwest winds 1 to 5 mph.
$$
ORZ694-312330-
Grande Ronde Valley of Oregon-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....90-95.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 5 to 11 mph.
* Ridges/upr slopes....Southeast winds 6 to 12 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....South 15 to 20 mph.
* Ventilation Index...Poor (102-188) increasing to excellent
(1049-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....55-60.
* Max humidity........40-53 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 3 to 8 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....South winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Fair (266-340) decreasing to poor (38-66)
after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....92-97.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 2 to 7 mph.
* Ridges/upr slopes....South winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Poor (44-96) increasing to excellent
(896-1038) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 56 to 61. Highs 95 to 100.
Southeast winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 58 to 63. Highs 92 to 97.
Terrain driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 57 to 62. Highs 91 to 96. North
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 58 to 63. Highs 87 to 92. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
57 to 62. Highs 83 to 88. Terrain driven winds less than 5 mph.
$$
ORZ699-312330-
Western Forested Blue Mountains-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy. Hazy.
* Max temperature.....86-93...except 79-87 ridges.
* Min humidity........15-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 3 to 8 mph.
* Ridges/upr slopes....Southeast winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......15000 ft agl.
* Transport winds.....South 15 to 20 mph.
* Ventilation Index...Poor (45-163) increasing to excellent
(839-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Min temperature.....55-61.
* Max humidity........37-52 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...East winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Southeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Southeast around 10 mph.
* Ventilation Index...Poor to fair (135-335) decreasing to poor
(25-61) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....86-93...except 80-87 ridges.
* Min humidity........16-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....South winds 1 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Poor (25-56) increasing to good to excellent
(537-971) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 56 to 63. Highs 85 to 94. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 57 to 64. Highs 82 to 91.
Terrain driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 56 to 63. Highs 82 to 91. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 56 to 63. Highs 78 to 87. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
54 to 62. Highs 74 to 83. Terrain driven winds less than 5 mph.
$$
ORZ696-312330-
John Day Valley-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....88-97...except 84-89 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 2 to 7 mph.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......16500 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Poor (25-141) increasing to excellent
(785-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Min temperature.....55-60.
* Max humidity........50-60 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 7 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 5 to 10 mph.
* Ventilation Index...Poor to fair (100-340) decreasing to poor
(25-64) after midnight.
.LABOR DAY...
* Sky/weather.........Mostly sunny. Hazy in the morning.
* Max temperature.....89-97...except 84-89 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14000 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Poor (25-40) increasing to good to excellent
(530-1024) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 57 to 63. Highs 91 to 99. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 60 to 66. Highs 87 to 96.
Terrain driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 59 to 65. Highs 87 to 96. East
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 59 to 65. Highs 83 to 92. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
57 to 63. Highs 80 to 88. Terrain driven winds less than 5 mph.
$$
ORZ700-312330-
Central Mountains of Oregon-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Areas of smoke in the morning. Hazy.
* Max temperature.....87-92...except 81-87 ridges.
* Min humidity........13-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming south 2 to 7
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......15500 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Poor (26-50) increasing to good to excellent
(579-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Hazy.
* Min temperature.....47-57.
* Max humidity........64-79 percent...except 52-65 percent ridges.
* Humidity recovery...Good...except Moderate ridges.
* 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 7 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 5 to 10 mph.
* Ventilation Index...Poor to fair (164-310) decreasing to poor
(25-39) after midnight.
.LABOR DAY...
* Sky/weather.........Mostly sunny. Hazy in the morning.
* Max temperature.....89-94...except 82-88 ridges.
* Min humidity........12-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming south 1 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Poor (25-32) increasing to fair to excellent
(457-1050) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 49 to 58. Highs 90 to 96. Southwest
winds 2 to 7 mph.
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
55 to 65. Highs 86 to 93. Southeast winds 1 to 5 mph.
.THURSDAY...Partly cloudy. Lows 53 to 63. Highs 86 to 93. South
winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 53 to 62. Highs 83 to 89. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy. Lows 51 to 60. Highs 80 to 86.
Southwest winds 1 to 6 mph.
$$
ORZ703-312330-
Warm Springs Reservation-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Hazy and areas of smoke.
* Max temperature.....85-93...except 75-82 ridges.
* Min humidity........22-27 percent...except 26-38 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.......9000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Poor (25-45) increasing to fair (316-468) in
the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy and areas of smoke.
* Min temperature.....54-59.
* Max humidity........61-73 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.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor to fair (149-261) decreasing to poor
(25-55) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....86-93...except 75-83 ridges.
* Min humidity........20-27 percent...except 26-39 percent ridges.
* 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.......8000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-37) increasing to poor to fair
(171-285) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 56 to 61. Highs 89 to 98. West
winds 1 to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 63 to 68. Highs 88 to 97.
Northwest winds 1 to 5 mph.
.THURSDAY...Partly cloudy. Lows 61 to 66. Highs 87 to 96. West
winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 60 to 65. Highs 82 to 92. West
winds 1 to 6 mph.
.SATURDAY...Mostly cloudy. Lows 57 to 62. Highs 79 to 89. West
winds 2 to 7 mph.
$$
ORZ704-312330-
Northern Deschutes National Forest-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy and areas of smoke.
* Max temperature.....85-90...except 72-82 ridges.
* Min humidity........22-28 percent...except 27-39 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 1 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Poor (25-42) increasing to fair to good
(402-628) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Hazy and areas of smoke.
* Min temperature.....47-54.
* Max humidity........66-81 percent.
* Humidity recovery...Good.
* 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 5 to 10 mph.
* Ventilation Index...Poor to fair (109-227) decreasing to poor
(25-51) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Areas of smoke in the morning.
* Max temperature.....86-91...except 73-83 ridges.
* Min humidity........21-26 percent...except 25-37 percent ridges.
* 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.......8500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Poor (25-30) increasing to fair to good
(265-511) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 50 to 57. Highs 83 to 96. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 57 to 62. Highs 80 to 94. West
winds 1 to 6 mph.
.THURSDAY...Partly cloudy. Lows 55 to 61. Highs 80 to 94. West
winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 54 to 60. Highs 75 to 89. West
winds 1 to 5 mph.
.SATURDAY...Partly cloudy. Lows 51 to 57. Highs 72 to 86. West
winds 1 to 6 mph.
$$
ORZ705-312330-
Southern Deschutes National Forest-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy and areas of smoke.
* Max temperature.....83-88...except 73-82 ridges.
* Min humidity........15-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Poor (25-46) increasing to excellent
(719-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear. Hazy and areas of smoke.
* Min temperature.....43-51.
* Max humidity........75-90 percent...except 62-77 percent ridges.
* Humidity recovery...Excellent...except Good ridges.
* 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 7 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 5 to 10 mph.
* Ventilation Index...Poor to fair (98-218) decreasing to poor
(25-31) after midnight.
.LABOR DAY...
* Sky/weather.........Mostly sunny. Areas of smoke in the morning.
* Max temperature.....85-90...except 75-84 ridges.
* Min humidity........12-24 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.......10000 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Poor (25-41) increasing to good to excellent
(660-1014) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 45 to 53. Highs 83 to 91. Terrain
driven winds less than 5 mph.
.WEDNESDAY...A slight chance of showers and thunderstorms. Mostly
cloudy. Lows 50 to 58. Highs 79 to 88. Terrain driven winds less
than 5 mph.
.THURSDAY...Partly cloudy. Lows 48 to 56. Highs 80 to 88. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 49 to 56. Highs 77 to 85. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy. Lows 46 to 54. Highs 73 to 82. Terrain
driven winds less than 5 mph.
$$
ORZ697-312330-
Central Blue Mountains-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....84-89...except 77-85 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 5
to 8 mph in the afternoon.
* Ridges/upr slopes....Southeast winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14500 ft agl.
* Transport winds.....Southeast around 10 mph increasing to south
around 20 mph in the afternoon.
* Ventilation Index...Poor (49-131) increasing to excellent
(927-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Min temperature.....51-59.
* Max humidity........37-52 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Southeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Southeast around 10 mph.
* Ventilation Index...Fair (251-425) decreasing to poor (25-57)
after midnight.
.LABOR DAY...
* Sky/weather.........Mostly sunny. Hazy in the morning.
* Max temperature.....85-90...except 79-86 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 2 to
6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southeast 2
to 6 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Poor (25-48) increasing to excellent
(724-1050) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 53 to 60. Highs 84 to 91. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 54 to 60. Highs 81 to 88.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy. Lows 53 to 59. Highs 80 to 88. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 53 to 59. Highs 77 to 84. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
51 to 57. Highs 73 to 81. Terrain driven winds less than 5 mph.
$$
ORZ698-312330-
Southern Blue Mountains-
633 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....85-91.
* Min humidity........11-16 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 5
to 8 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southeast 5
to 8 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......14000 ft agl.
* Transport winds.....Southeast 10 to 15 mph.
* Ventilation Index...Poor (34-86) increasing to excellent
(997-1050) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Min temperature.....50-57.
* Max humidity........43-58 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Southeast winds 2 to 7 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.....East 5 to 10 mph.
* Ventilation Index...Poor to fair (177-379) decreasing to poor
(25-43) after midnight.
.LABOR DAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Hazy in the morning.
* Max temperature.....85-90...except 80-85 ridges.
* Min humidity........11-16 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 3 to
7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming south 3 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Poor (25-39) increasing to good to excellent
(587-1050) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 52 to 59. Highs 87 to 93. East
winds 2 to 7 mph.
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
55 to 60. Highs 84 to 90. Northeast winds 1 to 5 mph.
.THURSDAY...Partly cloudy. Lows 53 to 58. Highs 84 to 90. North
winds 1 to 5 mph.
.FRIDAY...Mostly cloudy. Lows 53 to 58. Highs 80 to 86. West
winds 1 to 5 mph.
.SATURDAY...Mostly cloudy with a slight chance of showers. Lows
51 to 57. Highs 77 to 84. Southwest winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Sunday September 7 through Saturday September 13...
A greater chance of above normal temperatures and precipitation.
$$