580
FNUS56 KPDT 031134
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
434 AM PDT THU SEP 3 2026
DISCUSSION
PERSISTENT RAIN CHANCES ACROSS MOUNTAIN AREAS
THROUGH THE WEEKEND, WITH ROUNDS OF LIGHT RAIN IN THE LOWER
ELEVATIONS FRIDAY NIGHT AND SUNDAY. SLIGHT CHANCE (15-25%) OF
ISOLATED THUNDERSTORMS EACH AFTERNOON IN THE MOUNTAINS, EXCEPT FOR
SATURDAY. WINDS WILL REMAIN LIGHT WITH COOLER TEMPERATURES AND
ELEVATED RELATIVE HUMIDITIES THROUGH EARLY NEXT WEEK.
***THUNDERSTORMS IMPLY STRONG GUSTY WINDS ***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES ***
***CWR: CHANCE OF WETTING RAIN 0.10 OR GREATER ***
***VENTILATION INDEX IS DERIVED FROM 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. ***
WAZ695-032330-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING, THEN SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....54-62...EXCEPT 45-54 RIDGES.
* MIN HUMIDITY........56-71 PERCENT...EXCEPT 68-83 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.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (40-140) INCREASING TO LOW TO MODERATE
(197-301) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING.
* MIN TEMPERATURE.....36-42.
* 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.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (47-89) DECREASING TO LOW (25-30) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....55-63...EXCEPT 46-54 RIDGES.
* MIN HUMIDITY........54-69 PERCENT...EXCEPT 67-82 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (32-48) INCREASING TO LOW TO MODERATE
(97-225) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 36 TO
43. HIGHS 51 TO 64. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 38 TO 45.
HIGHS 56 TO 70. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS
42 TO 48. HIGHS 56 TO 69. NORTHWEST WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 42 TO 49. HIGHS 60 TO 73. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 63 TO 76.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WAZ690-032330-
KITTITAS VALLEY-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....62-69...EXCEPT 53-63 RIDGES.
* MIN HUMIDITY........39-54 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (55-109) INCREASING TO MODERATE TO HIGH
(369-573) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....42-48.
* MAX HUMIDITY........78-93 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.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (96-154) DECREASING TO LOW (25-33) AFTER
MIDNIGHT.
FRIDAY
* 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.....63-69...EXCEPT 52-63 RIDGES.
* MIN HUMIDITY........44-57 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.....WEST AROUND 5 MPH SHIFTING TO THE SOUTH IN
THE AFTERNOON.
* VENTILATION INDEX...LOW (37-55) INCREASING TO LOW TO MODERATE
(191-295) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 43 TO
49. HIGHS 63 TO 71. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 45 TO
51. HIGHS 67 TO 75. NORTH WINDS UP TO 5 MPH.
LABOR DAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 54. HIGHS 69 TO 77. NORTHWEST WINDS 3 TO 8 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 48 TO 54. HIGHS 71 TO 78.
NORTHWEST WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 75 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WAZ694-032330-
YAKAMA ALPINE DISTRICT-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....57-65...EXCEPT 46-59 RIDGES.
* MIN HUMIDITY........51-66 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (87-197) INCREASING TO MODERATE TO HIGH
(304-500) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING.
* MIN TEMPERATURE.....34-42.
* MAX HUMIDITY........81-96 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING 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 (86-142) DECREASING TO LOW (25-32) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....60-66...EXCEPT 49-61 RIDGES.
* MIN HUMIDITY........49-64 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.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (33-61) INCREASING TO MODERATE (207-293)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 35 TO 43.
HIGHS 54 TO 68. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 38 TO 46.
HIGHS 59 TO 71. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS
40 TO 48. HIGHS 60 TO 74. NORTHWEST WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 40 TO 48. HIGHS 64 TO 77. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 43 TO 51. HIGHS 67 TO 80. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ691-WAZ691-032330-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....65-71...EXCEPT 60-67 RIDGES.
* MIN HUMIDITY........34-47 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (91-163) INCREASING TO HIGH TO VERY HIGH
(507-729) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....42-48.
* MAX HUMIDITY........82-97 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 6 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 TO MODERATE (101-211) DECREASING TO LOW
(25-52) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS.
* MAX TEMPERATURE.....64-71.
* MIN HUMIDITY........38-51 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (45-87) INCREASING TO MODERATE (264-334)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 43 TO
48. HIGHS 66 TO 73. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 44 TO
49. HIGHS 68 TO 76. NORTH WINDS 1 TO 5 MPH.
LABOR DAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 46 TO 52.
HIGHS 70 TO 78. WEST WINDS 4 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 46 TO 52. HIGHS 74 TO 80.
SOUTHWEST WINDS 3 TO 8 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 77 TO 83. WEST
WINDS 1 TO 5 MPH.
ORZ692-WAZ692-032330-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....57-66...EXCEPT 50-56 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (121-227) INCREASING TO
MODERATE (299-499) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE EVENING,
THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....36-45.
* MAX HUMIDITY........86-100 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....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 (25-54).
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....57-65...EXCEPT 50-56 RIDGES.
* MIN HUMIDITY........51-66 PERCENT...EXCEPT 62-77 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.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (49-83) INCREASING TO MODERATE (238-346)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 36 TO
45. HIGHS 58 TO 68. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
37 TO 46. HIGHS 61 TO 70. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 39 TO
48. HIGHS 58 TO 69. WEST WINDS 1 TO 6 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 39 TO
48. HIGHS 64 TO 75. SOUTHWEST WINDS 1 TO 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 41 TO 50. HIGHS 68 TO 78. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ693-WAZ693-032330-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....56-65...EXCEPT 50-56 RIDGES.
* MIN HUMIDITY........50-63 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................70 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (70-140) INCREASING TO LOW TO MODERATE
(157-363) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....35-46.
* MAX HUMIDITY........83-98 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................90 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW (30-74) DECREASING TO LOW (32-56) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....56-65...EXCEPT 51-58 RIDGES.
* MIN HUMIDITY........47-60 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (39-65) INCREASING TO MODERATE (222-444)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 33 TO
46. HIGHS 61 TO 70. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 35 TO 47. HIGHS 64 TO 73.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS.
LOWS 37 TO 49. HIGHS 60 TO 69. WEST WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 36 TO 48.
HIGHS 66 TO 76. SOUTH WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 38 TO 50. HIGHS 70 TO 80.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ701-032330-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
434 AM PDT THU SEP 3 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.....64-69...EXCEPT 59-65 RIDGES.
* MIN HUMIDITY........51-66 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 1 TO 6 MPH. IN THE EASTERN
COLUMBIA RIVER GORGE, UPSLOPE LESS THAN 5 MPH BECOMING
NORTHWEST 1 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 6 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (32-124) INCREASING TO MODERATE TO HIGH
(203-611) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....39-46.
* MAX HUMIDITY........84-99 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING 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 5 TO 10 MPH.
* VENTILATION INDEX...LOW (74-140) DECREASING TO LOW (25-26) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....63-69.
* MIN HUMIDITY........50-65 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.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (36-50) INCREASING TO LOW TO MODERATE
(192-276) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 41 TO
47. HIGHS 66 TO 71. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 44 TO 50.
HIGHS 68 TO 73. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS
46 TO 53. HIGHS 71 TO 76. WEST WINDS 4 TO 9 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 45 TO 52. HIGHS 74 TO 79.
NORTHWEST WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 48 TO 54. HIGHS 77 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ702-032330-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
434 AM PDT THU SEP 3 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.....58-66...EXCEPT 51-61 RIDGES.
* MIN HUMIDITY........42-49 PERCENT...EXCEPT 46-61 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.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (116-210) INCREASING TO
MODERATE TO HIGH (354-596) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MIN TEMPERATURE.....35-42.
* 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.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (98-186) DECREASING TO LOW (25-57) AFTER
MIDNIGHT.
FRIDAY
* 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.....58-66...EXCEPT 52-61 RIDGES.
* MIN HUMIDITY........47-57 PERCENT...EXCEPT 54-69 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (55-77) INCREASING TO LOW TO MODERATE
(161-259) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 36 TO
43. HIGHS 56 TO 67. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 40 TO 47.
HIGHS 58 TO 69. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 42 TO 48.
HIGHS 60 TO 73. WEST WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 41 TO 48. HIGHS 65 TO 76. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 46 TO 52. HIGHS 68 TO 79.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ695-032330-
EAGLE CAP WILDERNESS-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-62...EXCEPT 41-51 RIDGES.
* MIN HUMIDITY........58-73 PERCENT...EXCEPT 71-86 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 3 TO 8 MPH.
* CWR.................80 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
* VENTILATION INDEX...LOW (126-196) INCREASING TO MODERATE
(228-396) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS, HEAVY SNOW SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A
SLIGHT CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....37-43...EXCEPT 31-38 RIDGES.
* MAX HUMIDITY........88-100 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.................90 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (45-89) DECREASING TO LOW (31-59) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN
THE MORNING. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....53-63...EXCEPT 42-53 RIDGES.
* MIN HUMIDITY........51-66 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING SOUTH 2 TO 6
MPH IN THE AFTERNOON.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (41-81) INCREASING TO MODERATE TO HIGH
(410-578) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 32 TO 41.
HIGHS 51 TO 66. NORTHWEST WINDS 1 TO 5 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY
CLOUDY. LOWS 35 TO 43. HIGHS 55 TO 69. TERRAIN DRIVEN WINDS LESS
THAN 5 MPH.
LABOR DAY
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS.
LOWS 36 TO 44. HIGHS 50 TO 64. NORTHWEST WINDS 1 TO 5 MPH.
TUESDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 35 TO 44.
HIGHS 57 TO 71. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 38 TO 46. HIGHS 61 TO 75.
SOUTHWEST WINDS 1 TO 5 MPH.
ORZ694-032330-
GRANDE RONDE VALLEY OF OREGON-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....60-65.
* MIN HUMIDITY........54-61 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 2 TO 7 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (88-122) INCREASING TO MODERATE (328-422)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....36-41.
* MAX HUMIDITY........95-100 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.................80 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE
NORTHWEST AFTER MIDNIGHT.
* VENTILATION INDEX...LOW (26-72) DECREASING TO LOW (25-45) 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.....61-66.
* MIN HUMIDITY........51-57 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (28-48) INCREASING TO MODERATE (294-408)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 35 TO 40.
HIGHS 65 TO 71. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 35 TO 40. HIGHS 69 TO 74.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 38 TO 43. HIGHS 65 TO 70. NORTHWEST
WINDS 1 TO 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 37 TO
42. HIGHS 70 TO 76. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39 TO 44. HIGHS 75 TO 80.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ699-032330-
WESTERN FORESTED BLUE MOUNTAINS-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING. SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....56-62...EXCEPT 49-56 RIDGES.
* 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.................30 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (139-271) INCREASING TO
MODERATE TO HIGH (409-655) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS.
* MIN TEMPERATURE.....33-40.
* 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.................50 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (52-116) DECREASING TO LOW (25-55) AFTER
MIDNIGHT.
FRIDAY
* 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.....57-62...EXCEPT 50-57 RIDGES.
* 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.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (50-82) INCREASING TO MODERATE TO HIGH
(373-569) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 33 TO
40. HIGHS 57 TO 65. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 35 TO 41. HIGHS 60 TO 68.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 36 TO 43. HIGHS 58 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 36 TO 43. HIGHS 64 TO 73. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39 TO 46. HIGHS 68 TO 76.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-032330-
JOHN DAY VALLEY-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....57-64...EXCEPT 52-57 RIDGES.
* MIN HUMIDITY........40-53 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (97-185) INCREASING TO MODERATE TO HIGH
(462-682) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....35-42.
* 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.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (60-156) DECREASING TO LOW (25-30) AFTER
MIDNIGHT.
FRIDAY
* 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.....57-65...EXCEPT 53-58 RIDGES.
* MIN HUMIDITY........39-49 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.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (40-62) INCREASING TO MODERATE TO HIGH
(337-529) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 36 TO 43.
HIGHS 61 TO 69. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 37 TO 44. 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 39 TO 46. HIGHS 63 TO 72. WEST
WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 39 TO 46. HIGHS 70 TO 78. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 42 TO 49. HIGHS 73 TO 81.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ700-032330-
CENTRAL MOUNTAINS OF OREGON-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....57-64...EXCEPT 50-55 RIDGES.
* MIN HUMIDITY........39-52 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (110-212) INCREASING TO HIGH
TO VERY HIGH (569-839) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....27-39.
* MAX HUMIDITY........84-99 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING 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 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (144-254) DECREASING TO LOW
(25-43) AFTER MIDNIGHT.
FRIDAY
* 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.....58-63...EXCEPT 51-57 RIDGES.
* MIN HUMIDITY........39-52 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 (55-93) INCREASING TO MODERATE TO HIGH
(268-506) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 28 TO 40.
HIGHS 61 TO 67. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 30 TO 43. HIGHS 61 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 31 TO 44. HIGHS 64 TO 70. WEST
WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 32 TO 44. HIGHS 70 TO 76. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 34 TO 46. HIGHS 73 TO 79. NORTH
WINDS UP TO 5 MPH.
ORZ703-032330-
WARM SPRINGS RESERVATION-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....60-68...EXCEPT 48-57 RIDGES.
* MIN HUMIDITY........38-47 PERCENT...EXCEPT 50-65 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (95-199) INCREASING TO HIGH TO VERY HIGH
(575-789) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MIN TEMPERATURE.....38-43.
* MAX HUMIDITY........82-94 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (181-229) DECREASING TO LOW
(25-47) AFTER MIDNIGHT.
FRIDAY
* 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.....59-67...EXCEPT 48-58 RIDGES.
* MIN HUMIDITY........43-58 PERCENT...EXCEPT 60-75 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.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (33-71) INCREASING TO LOW TO MODERATE
(179-247) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 38 TO 44.
HIGHS 60 TO 70. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 42 TO 47. HIGHS 61 TO 70. NORTH
WINDS UP TO 5 MPH.
LABOR DAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 44 TO 49.
HIGHS 64 TO 74. WEST WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 69 TO 77. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 72 TO 80.
NORTHEAST WINDS UP TO 5 MPH.
ORZ704-032330-
NORTHERN DESCHUTES NATIONAL FOREST-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....58-63...EXCEPT 45-55 RIDGES.
* MIN HUMIDITY........37-49 PERCENT...EXCEPT 52-67 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 3 TO 8 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (103-249) INCREASING TO HIGH
TO VERY HIGH (628-770) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE EVENING,
THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....30-38.
* MAX HUMIDITY........84-99 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH BECOMING SOUTHWEST AROUND
5 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (211-269) DECREASING TO LOW (25-69)
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.....57-63...EXCEPT 45-54 RIDGES.
* MIN HUMIDITY........47-62 PERCENT...EXCEPT 62-77 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (55-87) INCREASING TO LOW TO MODERATE
(173-239) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY. MOSTLY CLOUDY. LOWS 31 TO 38. HIGHS
55 TO 66. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 35 TO 43. HIGHS 55 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
LABOR DAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 36 TO 44. HIGHS 59 TO 71. WEST
WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 35 TO 43. HIGHS 65 TO 77. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39 TO 47. HIGHS 67 TO 79.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ705-032330-
SOUTHERN DESCHUTES NATIONAL FOREST-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....55-60...EXCEPT 45-53 RIDGES.
* MIN HUMIDITY........43-58 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE (205-305) INCREASING TO VERY HIGH
(722-934) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MIN TEMPERATURE.....23-34.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 6 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (259-359) DECREASING TO LOW (63-117)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS IN THE MORNING, THEN SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....55-60...EXCEPT 44-53 RIDGES.
* MIN HUMIDITY........49-64 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (86-136) INCREASING TO MODERATE (234-400)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY. MOSTLY CLOUDY. LOWS 24 TO 35. HIGHS
57 TO 65. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 28 TO 38. HIGHS 55 TO 63. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
LABOR DAY
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS 28 TO 39. HIGHS 61 TO 68. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 29 TO 40. HIGHS 67 TO 74. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 31 TO 43. HIGHS 70 TO 77.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ697-032330-
CENTRAL BLUE MOUNTAINS-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....52-57...EXCEPT 47-54 RIDGES.
* MIN HUMIDITY........61-71 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................70 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (189-265) INCREASING TO
MODERATE (271-415) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....29-38.
* MAX HUMIDITY........89-100 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.................60 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (82-124) DECREASING TO LOW (28-66) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....55-60...EXCEPT 50-56 RIDGES.
* MIN HUMIDITY........43-50 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (67-87) INCREASING TO HIGH (541-657) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 29 TO 38.
HIGHS 57 TO 64. WEST WINDS UP TO 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 31 TO 40. 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 32 TO 41. HIGHS 57 TO 64. NORTHWEST
WINDS 1 TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 32 TO 40. HIGHS 64 TO 71. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 35 TO 43. HIGHS 68 TO 75.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ698-032330-
SOUTHERN BLUE MOUNTAINS-
434 AM PDT THU SEP 3 2026
TODAY
* SKY/WEATHER.........CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-57.
* MIN HUMIDITY........62-74 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.
* CWR.................90 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (144-248) INCREASING TO
MODERATE (240-362) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....28-37.
* MAX HUMIDITY........89-100 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.................50 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (121-153) DECREASING TO LOW (32-66) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE.....55-60.
* MIN HUMIDITY........41-46 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.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (61-85) INCREASING TO HIGH (500-602) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 28 TO 37.
HIGHS 60 TO 65. WEST WINDS UP TO 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 31 TO 39. HIGHS 63 TO 68.
NORTHEAST WINDS UP TO 5 MPH.
LABOR DAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 32 TO 40. HIGHS 61 TO 67. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 32 TO 40. HIGHS 67 TO 72.
SOUTHEAST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 35 TO 42. HIGHS 71 TO 76.
NORTHEAST WINDS UP TO 5 MPH.
.8-14 DAY OUTLOOK FOR THURSDAY SEPTEMBER 10 THROUGH WEDNESDAY SEPTEMBER 16...
A GREATER CHANCE OF NEAR NORMAL TEMPERATURES AND ABOVE NORMAL
PRECIPITATION.
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