Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
821
FNUS56 KPDT 041121
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
421 AM PDT Fri Sep 4 2026
.DISCUSSION...Mountain rain chances will continue through early
next week, with isolated thunderstorm chances mainly in the
afternoons. Light winds and elevated relative humidity will result
in low fire weather concerns through the weekend. Breezy winds
will develop through the Cascade gaps while relative humidity
remains elevated.
***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 transport wind
multiplied by the mixing height in 100`s of ft.
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.
Categories: low (< 200), moderate (200-500),
high (500-700), and very high (> 700).
-Note: Max transport winds may not occur
at the same time as max mixing height. ***
WAZ695-042315-
East Washington South Central Cascade Mountains-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the afternoon.
* Max temperature.....57-65...except 48-57 ridges.
* Min humidity........45-60 percent...except 57-72 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south up to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......6500 ft agl.
* Transport winds.....West around 5 mph shifting to the southeast
in the afternoon.
* Ventilation Index...Low (28-54) increasing to low to moderate
(109-283) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers in the evening.
* Min temperature.....38-44.
* Max humidity........73-88 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (37-77) decreasing to low (25-28) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the afternoon.
* Max temperature.....58-66...except 49-58 ridges.
* Min humidity........48-61 percent...except 57-72 percent ridges.
* 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....20 percent (slight chance).
* Mixing height.......6000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (29-49) increasing to low to moderate
(128-242) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with a chance of showers. Lows 38 to 44.
Highs 57 to 70. Terrain driven winds less than 5 mph.
.LABOR DAY...A chance of showers. Partly cloudy. Lows 42 to 48.
Highs 55 to 68. Northwest winds 3 to 8 mph.
.TUESDAY...Partly cloudy. Lows 42 to 48. Highs 61 to 73. West
winds 4 to 9 mph.
.WEDNESDAY...Partly cloudy. Lows 45 to 50. Highs 65 to 77.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
48 to 53. Highs 64 to 77. West winds up to 5 mph.
$$
WAZ690-042315-
Kittitas Valley-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers and thunderstorms in the afternoon.
* Max temperature.....64-71...except 55-64 ridges.
* Min humidity........37-47 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 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.......7500 ft agl.
* Transport winds.....West around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (36-64) increasing to moderate (291-395)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....44-50.
* Max humidity........64-79 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (46-102) decreasing to low (25-31) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the afternoon.
* Max temperature.....64-70...except 55-64 ridges.
* Min humidity........42-53 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.......6500 ft agl.
* Transport winds.....North around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (38-68) increasing to moderate (221-353)
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A slight chance of showers. Mostly cloudy. Lows 44 to
50. Highs 67 to 75. North winds 1 to 6 mph.
.LABOR DAY...A chance of showers. Partly cloudy. Lows 48 to 54.
Highs 68 to 76. Northwest winds 5 to 11 mph.
.TUESDAY...Partly cloudy. Lows 47 to 52. Highs 71 to 78.
Northwest winds 5 to 11 mph.
.WEDNESDAY...Mostly clear. Lows 50 to 55. Highs 75 to 82. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 52 to 58. Highs 75 to 83. Terrain
driven winds less than 5 mph.
$$
WAZ694-042315-
Yakama Alpine District-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming 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.....62-69...except 51-63 ridges.
* Min humidity........42-56 percent.
* 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.......6500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (29-57) increasing to low to moderate
(182-278) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers in
the evening.
* Min temperature.....37-45.
* Max humidity........73-88 percent.
* 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (48-90) decreasing to low (25-26) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....61-68...except 50-63 ridges.
* Min humidity........48-63 percent.
* 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.......5500 ft agl.
* Transport winds.....West around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (25-31) increasing to low to moderate
(194-246) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with a chance of showers. Lows 38 to 45.
Highs 59 to 71. Terrain driven winds less than 5 mph.
.LABOR DAY...A chance of showers. Partly cloudy. Lows 40 to 48.
Highs 60 to 73. West winds 3 to 8 mph.
.TUESDAY...Partly cloudy. Lows 40 to 48. Highs 65 to 77. West
winds 3 to 8 mph.
.WEDNESDAY...Mostly clear. Lows 43 to 51. Highs 68 to 80. Terrain
driven winds less than 5 mph.
.THURSDAY...A slight chance of showers. Mostly clear. Lows 46 to
54. Highs 68 to 81. West winds 1 to 5 mph.
$$
ORZ691-WAZ691-042315-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Max temperature.....66-73.
* Min humidity........34-45 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....10 percent (very low chance).
* Mixing height.......8000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (44-86) increasing to moderate (269-345)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A chance of showers after
midnight.
* Min temperature.....44-49.
* Max humidity........74-89 percent.
* 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (58-124) decreasing to low (25-28) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy. A chance of showers in the
morning. A slight chance of showers in the afternoon.
* Max temperature.....66-72...except 61-68 ridges.
* Min humidity........40-53 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....10 percent (very low chance).
* Mixing height.......6500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (30-54) increasing to low to moderate
(169-255) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers. Mostly cloudy. Lows 44 to 49.
Highs 67 to 76. North winds 1 to 5 mph.
.LABOR DAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 47 to 52. Highs 69 to 77.
Southwest winds 6 to 12 mph.
.TUESDAY...Partly cloudy. Lows 46 to 51. Highs 74 to 80.
Southwest winds 6 to 12 mph.
.WEDNESDAY...Mostly clear. Lows 48 to 53. Highs 77 to 84. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 51 to 56. Highs 79 to 85.
Southwest winds 1 to 6 mph.
$$
ORZ692-WAZ692-042315-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
* Max temperature.....60-68...except 52-59 ridges.
* Min humidity........45-60 percent.
* 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....10 percent (very low chance).
* Mixing height.......6500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (66-90) increasing to moderate (211-343)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Min temperature.....37-46.
* Max humidity........75-90 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....East around 5 mph shifting to the southwest
after midnight.
* Ventilation Index...Low (29-63) decreasing to low (25) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....61-68...except 55-60 ridges.
* Min humidity........49-62 percent...except 58-73 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.......5500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (31-51) increasing to low to moderate
(156-284) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers. Partly cloudy. Lows 37 to 46.
Highs 61 to 70. Terrain driven winds less than 5 mph.
.LABOR DAY...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows 40 to 48. Highs 57 to 68. West
winds 3 to 8 mph.
.TUESDAY...A slight chance of showers. Partly cloudy. Lows 38 to
48. Highs 65 to 76. South winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 42 to 50. Highs 70 to 80. Terrain
driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
45 to 54. Highs 71 to 81. Terrain driven winds less than 5 mph.
$$
ORZ693-WAZ693-042315-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
* Max temperature.....59-67...except 53-59 ridges.
* Min humidity........40-50 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....10 percent (very low chance).
* Mixing height.......6500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (45-71) increasing to moderate (216-466)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers
after midnight.
* Min temperature.....35-46.
* Max humidity........76-91 percent...except 68-79 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the south
after midnight.
* Ventilation Index...Low (35-67) decreasing to low (25) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....62-71...except 58-63 ridges.
* Min humidity........38-51 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming south 1 to 5
mph in the afternoon.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......7500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-39) increasing to low to high
(196-550) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 36 to 47. Highs 63 to 72.
Terrain driven winds less than 5 mph.
.LABOR DAY...Showers likely and a slight chance of thunderstorms.
Lows 37 to 49. Highs 59 to 68. West winds up to 5 mph.
.TUESDAY...A slight chance of showers. Partly cloudy. Lows 36 to
47. Highs 67 to 77. South winds 3 to 8 mph.
.WEDNESDAY...Partly cloudy. Lows 39 to 50. Highs 72 to 81.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
42 to 54. Highs 73 to 82. Southwest winds 1 to 6 mph.
$$
ORZ701-042315-
Eastern Columbia River Gorge of Oregon-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........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.....66-71.
* Min humidity........43-58 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.......7000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (33-47) increasing to low to moderate
(119-233) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Min temperature.....43-49.
* Max humidity........82-97 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (83-127) decreasing to low (26-34) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....66-71.
* Min humidity........45-59 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph...except upslope
less than 5 mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......5500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (28-44) increasing to low to moderate
(143-221) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with a chance of showers. Lows 44 to 50.
Highs 67 to 73. Terrain driven winds less than 5 mph.
.LABOR DAY...A slight chance of showers. Partly cloudy. Lows
46 to 52. Highs 70 to 75. West winds 5 to 11 mph.
.TUESDAY...Partly cloudy. Lows 45 to 51. Highs 75 to 80. West
winds 4 to 9 mph.
.WEDNESDAY...Mostly clear. Lows 48 to 54. Highs 78 to 83. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear with a slight chance of showers. Lows
50 to 56. Highs 78 to 83. Terrain driven winds less than 5 mph.
$$
ORZ702-042315-
East Slopes of the Mt. Hood National Forest-
421 AM PDT Fri Sep 4 2026
.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.....60-68...except 54-64 ridges.
* Min humidity........42-53 percent...except 50-65 percent ridges.
* 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....20 percent (slight chance).
* Mixing height.......5500 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Low (41-65) increasing to low to moderate
(93-207) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A chance of showers in the
evening. A slight chance of showers after midnight.
* Min temperature.....38-45.
* Max humidity........79-94 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (61-95) decreasing to low (25-29) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....61-68...except 55-65 ridges.
* Min humidity........45-54 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.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......5500 ft agl.
* Transport winds.....West around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (25-33) increasing to low to moderate
(159-259) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with a chance of showers. Lows 40 to 47.
Highs 58 to 68. Terrain driven winds less than 5 mph.
.LABOR DAY...A chance of showers. Partly cloudy. Lows 42 to 49.
Highs 59 to 72. West winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 42 to 48. Highs 65 to 77. West
winds up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 46 to 52. Highs 68 to 80.
Terrain driven winds less than 5 mph.
.THURSDAY...Mostly clear with a slight chance of showers. Lows
49 to 55. Highs 69 to 81. Terrain driven winds less than 5 mph.
$$
ORZ695-042315-
Eagle Cap Wilderness-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Max temperature.....55-65...except 44-55 ridges.
* Min humidity........41-53 percent...except 49-64 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 1
to 5 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......6000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (46-88) increasing to moderate to high
(423-619) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....37-44...except 32-39 ridges.
* Max humidity........71-86 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....South around 5 mph shifting to the northeast
after midnight.
* Ventilation Index...Low (28-84) decreasing to low (25-26) after
midnight.
.SATURDAY...
* 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.....58-68...except 48-59 ridges.
* Min humidity........41-56 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 1
to 5 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....20 percent (slight chance).
* Mixing height.......7500 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Low (28-72) increasing to moderate to high
(444-688) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 36 to 44. Highs 55 to 69.
Northeast winds 1 to 5 mph.
.LABOR DAY...Showers likely and a slight chance of thunderstorms.
Lows 37 to 45. Highs 48 to 63. Northwest winds 1 to 5 mph.
.TUESDAY...Partly cloudy with a slight chance of showers. Lows
35 to 43. Highs 57 to 71. South winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Lows
39 to 47. Highs 62 to 76. Southwest winds 1 to 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
44 to 51. Highs 63 to 77. Southwest winds 2 to 7 mph.
$$
ORZ694-042315-
Grande Ronde Valley of Oregon-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy. A chance of showers in the
afternoon.
* Max temperature.....63-68.
* Min humidity........44-49 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 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......6500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (29-49) increasing to moderate to high
(351-503) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Min temperature.....35-40.
* Max humidity........84-99 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (33-53) decreasing to low (25-28) after
midnight.
.SATURDAY...
* 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.....66-71.
* Min humidity........45-50 percent.
* 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.......7500 ft agl.
* Transport winds.....Northwest around 5 mph shifting to the south
in the afternoon.
* Ventilation Index...Low (25-30) increasing to moderate (317-459)
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 35 to 41. Highs 68 to 74.
Terrain driven winds less than 5 mph.
.LABOR DAY...Showers likely and a slight chance of thunderstorms.
Lows 37 to 43. Highs 64 to 70. Northwest winds 1 to 6 mph.
.TUESDAY...A slight chance of showers. Partly cloudy. Lows 36 to
41. Highs 71 to 77. South winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Lows
39 to 45. Highs 76 to 82. Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
43 to 49. Highs 77 to 83. South winds up to 5 mph.
$$
ORZ699-042315-
Western Forested Blue Mountains-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming 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.....59-65...except 52-59 ridges.
* Min humidity........38-50 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.......7000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (55-87) increasing to moderate to high
(405-577) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Min temperature.....35-42.
* Max humidity........75-90 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (27-73) decreasing to low (25-26) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
* Max temperature.....61-66...except 54-61 ridges.
* Min humidity........39-54 percent.
* 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.......8000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (26-42) increasing to moderate to high
(344-540) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 36 to 43. Highs 59 to 68.
Terrain driven winds less than 5 mph.
.LABOR DAY...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows 38 to 45. Highs 56 to 65. West
winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 36 to 43. Highs 65 to 74. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 40 to 48. Highs 70 to 78.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
44 to 52. Highs 71 to 79. Terrain driven winds less than 5 mph.
$$
ORZ696-042315-
John Day Valley-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon.
* Max temperature.....60-68...except 55-60 ridges.
* Min humidity........35-44 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.......7000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (49-79) increasing to moderate to high
(378-582) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers.
* Min temperature.....37-45.
* Max humidity........73-88 percent.
* 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....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (37-91) decreasing to low (25) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers.
* Max temperature.....61-69...except 57-62 ridges.
* Min humidity........33-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (25-35) increasing to moderate (313-499)
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Showers likely and a slight chance of thunderstorms.
Mostly cloudy. Lows 39 to 46. Highs 62 to 71. Terrain driven
winds less than 5 mph.
.LABOR DAY...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows 40 to 47. Highs 62 to 70. West
winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 39 to 46. Highs 70 to 79. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 43 to 50. Highs 74 to 83.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
47 to 53. Highs 76 to 84. Terrain driven winds less than 5 mph.
$$
ORZ700-042315-
Central Mountains of Oregon-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers and a slight chance of thunderstorms in the
afternoon.
* Max temperature.....59-65...except 53-58 ridges.
* Min humidity........35-49 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.......6500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (55-91) increasing to moderate to high
(340-542) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the evening. A chance of showers.
* Min temperature.....29-42.
* Max humidity........83-98 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.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (53-111) decreasing to low (25-31) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy. A chance of showers.
* Max temperature.....62-67...except 55-61 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.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......8000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (26-42) increasing to moderate to high
(261-593) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 32 to 44. Highs 61 to 67. North
winds up to 5 mph.
.LABOR DAY...A chance of showers. Mostly cloudy. Lows 31 to 45.
Highs 62 to 70. West winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 31 to 44. Highs 71 to 76. South
winds up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 36 to 48. Highs 74 to 80.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
39 to 51. Highs 76 to 82. Southwest winds 1 to 6 mph.
$$
ORZ703-042315-
Warm Springs Reservation-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of showers. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....60-68...except 49-59 ridges.
* Min humidity........41-55 percent...except 58-73 percent ridges.
* 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....20 percent (slight chance).
* Mixing height.......6000 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Low (33-55) increasing to low to moderate
(154-282) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A chance of showers.
* Min temperature.....40-45.
* Max humidity........79-92 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.................10 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (62-86) decreasing to low (25-27) after
midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming 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.....62-70...except 52-60 ridges.
* Min humidity........40-53 percent...except 56-71 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....20 percent (slight chance).
* Mixing height.......6000 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Low (25-29) increasing to low to moderate
(150-218) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with a chance of showers. Lows 42 to 47.
Highs 60 to 69. Terrain driven winds less than 5 mph.
.LABOR DAY...A chance of showers. Mostly cloudy. Lows 44 to 49.
Highs 63 to 73. West winds 3 to 8 mph.
.TUESDAY...Partly cloudy. Lows 43 to 48. Highs 70 to 78. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 47 to 52. Highs 73 to 81.
Terrain driven winds less than 5 mph.
.THURSDAY...Mostly clear with a slight chance of showers. Lows
50 to 55. Highs 74 to 84. Southwest winds up to 5 mph.
$$
ORZ704-042315-
Northern Deschutes National Forest-
421 AM PDT Fri Sep 4 2026
.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.....58-64...except 46-55 ridges.
* Min humidity........50-63 percent...except 64-79 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................50 percent.
* Chc of lightning....30 percent (chance).
* Mixing height.......5500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (41-67) increasing to low to moderate
(155-223) 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, then a slight chance of showers after midnight.
* Min temperature.....32-40.
* Max humidity........83-98 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.......500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (73-93) decreasing to low (25-28) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers in the afternoon.
* Max temperature.....61-67...except 50-59 ridges.
* Min humidity........43-53 percent...except 55-70 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....10 percent (very low chance).
* Mixing height.......6500 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Low (25-42) increasing to low to moderate
(192-284) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Lows 34 to 43. Highs 54 to 66. Terrain driven
winds less than 5 mph.
.LABOR DAY...A chance of showers. Mostly cloudy. Lows 36 to 44.
Highs 58 to 70. West winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 35 to 43. Highs 66 to 77. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 40 to 48. Highs 69 to 80.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
42 to 51. Highs 69 to 81. Terrain driven winds less than 5 mph.
$$
ORZ705-042315-
Southern Deschutes National Forest-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy. A chance of rain and snow
showers in the morning, then showers likely and a slight chance
of thunderstorms in the afternoon.
* Max temperature.....56-61...except 46-54 ridges.
* Min humidity........50-65 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....South winds 2 to 6 mph in the morning
becoming light less than 5 mph.
* CWR.................30 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......6000 ft agl.
* Transport winds.....South around 10 mph.
* Ventilation Index...Low (80-114) increasing to moderate (305-453)
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.....25-35.
* Max humidity........89-100 percent...except 78-93 percent ridges.
* 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.................20 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (69-117) decreasing to low (25-28) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....61-66...except 51-59 ridges.
* Min humidity........34-49 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....10 percent (very low chance).
* Mixing height.......8500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (31-59) increasing to moderate to high
(436-600) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Lows 28 to 39. Highs 55 to 63. Terrain driven
winds less than 5 mph.
.LABOR DAY...Showers likely. Mostly cloudy. Lows 28 to 40. Highs
59 to 67. West winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 28 to 40. Highs 68 to 75. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy. Lows 32 to 45. Highs 70 to 78.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
35 to 48. Highs 71 to 79. Southwest winds up to 5 mph.
$$
ORZ697-042315-
Central Blue Mountains-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon.
* Max temperature.....57-62...except 52-58 ridges.
* Min humidity........40-48 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.......6500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (70-88) increasing to high (514-586) in
the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers in
the evening. A chance of showers after midnight.
* Min temperature.....30-39.
* Max humidity........80-95 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.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Southwest around 5 mph shifting to the
northwest after midnight.
* Ventilation Index...Low (71-119) decreasing to low (25-27) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy. A chance of showers in the
morning.
* Max temperature.....60-65...except 55-61 ridges.
* Min humidity........34-40 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 becoming south 2 to 5
mph in the afternoon.
* CWR.................10 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......8000 ft agl.
* Transport winds.....Southwest around 5 mph increasing to around
15 mph in the afternoon.
* Ventilation Index...Low (27-47) increasing to high to very high
(606-742) in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 32 to 41. Highs 60 to 66.
Terrain driven winds less than 5 mph.
.LABOR DAY...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows 33 to 42. Highs 56 to 63. Northwest
winds 1 to 6 mph.
.TUESDAY...Partly cloudy. Lows 32 to 40. Highs 64 to 72. South
winds up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 37 to 45. Highs 69 to 76.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
41 to 49. Highs 70 to 78. Southwest winds 1 to 6 mph.
$$
ORZ698-042315-
Southern Blue Mountains-
421 AM PDT Fri Sep 4 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the afternoon.
* Max temperature.....57-62...except 52-57 ridges.
* Min humidity........40-47 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....10 percent (very low chance).
* Mixing height.......6000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (48-72) increasing to moderate to high
(398-506) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of thunderstorms in the evening. A chance of
showers.
* Min temperature.....30-38.
* Max humidity........79-94 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.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (25-65) decreasing to low (25-33) after
midnight.
.SATURDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
chance of showers in the morning.
* Max temperature.....60-65.
* Min humidity........32-37 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....10 percent (very low chance).
* Mixing height.......8000 ft agl.
* Transport winds.....West around 5 mph increasing to southwest
around 15 mph in the afternoon.
* Ventilation Index...Low (25-43) increasing to high (584-696) in
the afternoon.
.Forecast days 3 through 7......
.SUNDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 32 to 40. Highs 62 to 68. East
winds up to 5 mph.
.LABOR DAY...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows 33 to 40. Highs 60 to 65. West
winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 32 to 39. Highs 68 to 73. East
winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy. Lows 36 to 43. Highs 72 to 77.
Southeast winds 1 to 6 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
40 to 47. Highs 74 to 79. Southwest winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Friday September 11 through Thursday September 17...
A greater chance of near normal temperatures and above normal
precipitation.
$$