992
FNUS56 KOTX 022213
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
313 PM PDT WED SEP 2 2026
DISCUSSION
CENTRAL WA:
- GOOD TO EXCELLENT RH RECOVERY TONIGHT.
- BREEZY SOUTH WINDS THURSDAY FOR THE COLUMBIA BASIN AND OKANOGAN
VALLEY.
- SHOWER AND THUNDERSTORM CHANCES CONTINUE EACH DAY THROUGH
SATURDAY.
EASTERN WA:
- GOOD TO EXCELLENT RH RECOVERY TONIGHT.
- BREEZY SOUTH WINDS THURSDAY FOR THE COLUMBIA BASIN.
- SHOWER AND THUNDERSTORM CHANCES CONTINUE ACROSS THE NORTHERN
MOUNTAINS AND SOUTHEAST WA EACH DAY THROUGH SATURDAY.
NORTH ID:
- GOOD TO EXCELLENT RH RECOVERY TUESDAY NIGHT.
- SHOWER AND THUNDERSTORM CHANCES CONTINUE EACH DAY THROUGH
SATURDAY.
ACTIVE AND WETTER THAN NORMAL WEATHER HAS ARRIVED AND WILL
CONTINUE THROUGH THE END OF THE WEEK AND INTO THE WEEKEND. EXPECT
PERIODIC SHOWERS, ISOLATED THUNDERSTORMS, AND COOLER THAN NORMAL
TEMPERATURES.
***************************************************************
FORECASTS FOR 20 FOOT WIND SPEEDS (VALLEYS AND RIDGE TOPS) ARE
10 MINUTE AVERAGES REFLECTING RAWS WIND.
***VENTILATION INDEX IS DERIVED FROM TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT DIVIDED BY 100.
CATEGORIES: LOW (< 200), MODERATE (200-500),
HIGH (500-800), AND VERY HIGH (> 800).
***************************************************************
WAZ696-698-031345-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN AND HIGH MOUNTAIN SNOW
SHOWERS THROUGH THE NIGHT WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....44-52 VALLEYS AND 36-46 MOUNTAINS.
* 24 HR TREND........7 DEGREES COOLER.
* MAX HUMIDITY........71-90 PERCENT VALLEYS AND 81-100 PERCENT
MOUNTAINS.
* 24 HR TREND........20 PERCENT WETTER VALLEYS, AND UNCHANGED
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 12 MPH WITH GUSTS TO AROUND 30
MPH IN THE EVENING SHIFTING TO THE NORTHWEST UP TO 5 MPH
OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 13 MPH. GUSTS UP TO 30 MPH IN
THE EVENING.
* MIXING HEIGHT.......3000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....80 PERCENT.
* VENTILATION INDEX...VERY HIGH (866) IN THE EVENING DECREASING TO
LOW (157) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN AND HIGH
MOUNTAIN SNOW SHOWERS WITH ACCOMPANYING THUNDERSTORMS THROUGH
THE DAY.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....59-69 VALLEYS AND 46-56 MOUNTAINS.
* 24 HR TREND........6 DEGREES COOLER.
* MIN HUMIDITY........45-60 PERCENT VALLEYS AND 65-80 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT WETTER VALLEYS, AND UNCHANGED
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 5 MPH IN THE MORNING
SHIFTING TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 5 MPH.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (323).
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....42-50 VALLEYS AND 36-46 MOUNTAINS.
* MAX HUMIDITY........65-80 PERCENT VALLEYS AND 75-90 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST UP TO 4 MPH.
* RIDGES/UPR SLOPES....NORTHWEST UP TO 4 MPH.
* MIXING HEIGHT.......3000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (222).
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY THROUGH
THE DAY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....60-70 VALLEYS AND 47-57 MOUNTAINS.
* MIN HUMIDITY........50-65 PERCENT VALLEYS AND 65-80 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST UP TO 3 MPH IN THE MORNING
SHIFTING TO THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST 3 TO 4 MPH.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (309).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 57 VALLEYS...38 TO 48 MOUNTAINS. HIGHS
62 TO 72 VALLEYS...49 TO 59 MOUNTAINS. NORTHEAST WIND UP TO
5 MPH.
SUNDAY THROUGH LABOR DAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 50 TO 60 VALLEYS...41 TO 51 MOUNTAINS. HIGHS 68 TO
78 VALLEYS...56 TO 66 MOUNTAINS. NORTHWEST WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 52 TO
62 VALLEYS...45 TO 55 MOUNTAINS. HIGHS 72 TO 82 VALLEYS...59 TO
69 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ697-031345-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS AND HIGH
MOUNTAIN SNOW SHOWERS THROUGH THE NIGHT WITH A CHANCE OF
THUNDERSTORMS IN THE EVENING.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....43-49 VALLEYS AND 35-45 MOUNTAINS.
* 24 HR TREND........6 DEGREES COOLER.
* MAX HUMIDITY........65-80 PERCENT VALLEYS AND 80-90 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT WETTER
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST 3 TO 5 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 9 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....80 PERCENT.
* VENTILATION INDEX...MODERATE (386) IN THE EVENING DECREASING TO
LOW (117) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.
RAIN AND HIGH MOUNTAIN SNOW SHOWERS THROUGH THE DAY WITH A
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....59-69 VALLEYS AND 47-57 MOUNTAINS.
* 24 HR TREND........8 DEGREES COOLER.
* MIN HUMIDITY........55-70 PERCENT.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT WETTER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 5 MPH.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (250).
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN AND HIGH
MOUNTAIN SNOW SHOWERS IN THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....36-46.
* MAX HUMIDITY........75-80 PERCENT VALLEYS AND 81-100 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 4 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 5 MPH.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...LOW (142).
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....60-70 VALLEYS AND 48-58 MOUNTAINS.
* MIN HUMIDITY........50-65 PERCENT VALLEYS AND 60-75 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST AROUND 3 MPH IN THE MORNING
SHIFTING TO THE WEST 3 TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 5 MPH.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (306).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 57 VALLEYS...37 TO 47 MOUNTAINS. HIGHS
63 TO 73 VALLEYS...51 TO 61 MOUNTAINS. NORTHEAST WIND UP TO
5 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 48 TO 58 VALLEYS
38 TO
48 MOUNTAINS. HIGHS 70 TO 80 VALLEYS...57 TO 67 MOUNTAINS. NORTH
WIND UP TO 5 MPH.
LABOR DAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 52 TO
62 VALLEYS...43 TO 53 MOUNTAINS. HIGHS 68 TO 78 VALLEYS...56 TO
66 MOUNTAINS. NORTHWEST WIND UP TO 5 MPH.
TUESDAY...PARTLY CLOUDY. LOWS 53 TO 62 VALLEYS
44 TO
54 MOUNTAINS. HIGHS 70 TO 80 VALLEYS...58 TO 68 MOUNTAINS.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 54 TO
63 VALLEYS...45 TO 55 MOUNTAINS. HIGHS 74 TO 84 VALLEYS...62 TO
72 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ704-031345-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....47-54.
* 24 HR TREND........6 DEGREES COOLER.
* MAX HUMIDITY........75-90 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHEAST 4 TO 15 MPH WITH GUSTS TO AROUND 30
MPH IN THE EVENING SHIFTING TO THE SOUTHWEST UP TO 4 MPH
OVERNIGHT.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....60 PERCENT.
* VENTILATION INDEX...VERY HIGH (931) IN THE EVENING DECREASING TO
LOW (152) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS IN THE LATE
MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....61-70.
* 24 HR TREND........5 DEGREES COOLER.
* MIN HUMIDITY........40-55 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTH UP TO 6 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (419).
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....43-53.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST UP TO 4 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST UP TO 3 MPH OVERNIGHT.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...MODERATE (221).
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....62-71.
* MIN HUMIDITY........40-50 PERCENT.
* 20-FOOT WINDS.......LIGHT WINDS IN THE MORNING BECOMING SOUTHEAST
3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (349).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 45 TO 55. HIGHS 63 TO 71. EAST WIND UP TO
5 MPH.
SUNDAY THROUGH LABOR DAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 48 TO 58. HIGHS 69 TO 79. NORTHWEST WIND UP TO
5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 51 TO 61. HIGHS
72 TO 82.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ703-031345-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....50-54.
* 24 HR TREND........2 DEGREES COOLER.
* MAX HUMIDITY........80-90 PERCENT.
* 24 HR TREND........20 PERCENT WETTER.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTH 6 TO 17 MPH WITH GUSTS TO AROUND 40
MPH.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....40 PERCENT.
* VENTILATION INDEX...VERY HIGH (1432) IN THE EVENING DECREASING TO
MODERATE (285) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY. A CHANCE OF THUNDERSTORMS IN THE LATE MORNING
AND AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....62-71.
* 24 HR TREND........4 DEGREES COOLER.
* MIN HUMIDITY........40-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTH 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
MORNING.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...HIGH (525).
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....44-52.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST UP TO 4 MPH OVERNIGHT.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...MODERATE (311) IN THE EVENING DECREASING TO
LOW (36) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....63-71.
* MIN HUMIDITY........40-50 PERCENT.
* 20-FOOT WINDS.......NORTH UP TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (243) IN THE MORNING INCREASING TO
MODERATE (463) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 54. HIGHS 64 TO 72. NORTH WIND UP TO 5 MPH.
SUNDAY THROUGH LABOR DAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 49 TO 58. HIGHS 68 TO 78. NORTHWEST WIND UP TO
10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 53 TO 60. HIGHS
71 TO 81.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ702-031345-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS AND A CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....46-53.
* 24 HR TREND........3 DEGREES COOLER.
* MAX HUMIDITY........80-90 PERCENT VALLEYS AND 90-100 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT WETTER.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 5 TO 16 MPH WITH GUSTS TO AROUND 30
MPH.
* RIDGES/UPR SLOPES....SOUTH 5 TO 16 MPH WITH GUSTS TO AROUND 30
MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....60 PERCENT.
* VENTILATION INDEX...VERY HIGH (1180) IN THE EVENING DECREASING TO
MODERATE (272) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....61-71 VALLEYS AND 53-63 MOUNTAINS.
* 24 HR TREND........3 DEGREES COOLER.
* MIN HUMIDITY........35-45 PERCENT VALLEYS AND 40-55 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT WETTER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 4 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
MORNING.
* RIDGES/UPR SLOPES....SOUTH 4 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
MORNING.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (420) IN THE MORNING INCREASING TO
HIGH (610) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....42-48.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE NORTHEAST AROUND 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE NORTH AROUND 3 MPH OVERNIGHT.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (423) IN THE EVENING DECREASING TO
LOW (54) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE LATE MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....61-71 VALLEYS AND 54-64 MOUNTAINS.
* MIN HUMIDITY........40-55 PERCENT VALLEYS AND 50-65 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH IN THE AFTERNOON.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (402).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS
45 TO 51. HIGHS 63 TO 73 VALLEYS...56 TO 65 MOUNTAINS. NORTHEAST
WIND UP TO 5 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO 52.
HIGHS 68 TO 78 VALLEYS...61 TO 71 MOUNTAINS. NORTH WIND UP TO
10 MPH.
LABOR DAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 49 TO
55. HIGHS 66 TO 76 VALLEYS...60 TO 70 MOUNTAINS. NORTHWEST WIND
UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
55. HIGHS 68 TO 78 VALLEYS...61 TO 71 MOUNTAINS.
WEDNESDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS 72 TO
82 VALLEYS...65 TO 74 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ699-031345-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS AND A CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....48-53 VALLEYS AND 42-48 MOUNTAINS.
* 24 HR TREND........4 DEGREES COOLER VALLEYS, AND 9 DEGREES COOLER
MOUNTAINS.
* MAX HUMIDITY........81-100 PERCENT.
* 24 HR TREND........10 PERCENT WETTER.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 12 MPH WITH GUSTS TO AROUND 25
MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 12 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....60 PERCENT.
* VENTILATION INDEX...VERY HIGH (1252) IN THE EVENING DECREASING TO
LOW (197) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. RAIN SHOWERS THROUGH THE DAY
WITH A CHANCE OF THUNDERSTORMS IN THE LATE MORNING AND
AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....60-70 VALLEYS AND 52-61 MOUNTAINS.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........35-50 PERCENT VALLEYS AND 45-60 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT WETTER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 7 MPH.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (413) IN THE MORNING INCREASING TO
HIGH (601) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....40-45.
* MAX HUMIDITY........71-90 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 4 MPH IN THE EVENING SHIFTING TO
THE NORTH UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTH UP TO 4 MPH IN THE EVENING SHIFTING TO
THE NORTHWEST UP TO 3 MPH OVERNIGHT.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...MODERATE (354) IN THE EVENING DECREASING TO
LOW (41) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE LATE MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....61-71 VALLEYS AND 53-62 MOUNTAINS.
* MIN HUMIDITY........40-50 PERCENT VALLEYS AND 50-65 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...LIGHT WINDS IN THE MORNING BECOMING SOUTH 3
TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST UP TO 3 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (351).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 42 TO 50. HIGHS 62 TO 72 VALLEYS...54 TO
64 MOUNTAINS. NORTHEAST WIND UP TO 5 MPH.
SUNDAY...MOSTLY CLOUDY. LOWS 41 TO 50. HIGHS 69 TO 79 VALLEYS
60 TO 69 MOUNTAINS. NORTH WIND UP TO 5 MPH.
LABOR DAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 45 TO
54. HIGHS 67 TO 76 VALLEYS...60 TO 68 MOUNTAINS. NORTHWEST WIND
UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO
55. HIGHS 68 TO 77 VALLEYS...61 TO 70 MOUNTAINS.
WEDNESDAY
PARTLY CLOUDY. LOWS 47 TO 55. HIGHS 71 TO
81 VALLEYS...64 TO 73 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ700-701-031345-
SELKIRK MOUNTAINS OF NORTHEAST WASHINGTON (ZONE 700)-
FOOTHILLS OF NORTHEAST WASHINGTON (ZONE 701)-
INCLUDING THE CITIES OF METALINE FALLS, IONE, COLVILLE,
DEER PARK, AND NEWPORT
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....45-51.
* 24 HR TREND........3 DEGREES COOLER.
* MAX HUMIDITY........90-100 PERCENT.
* 24 HR TREND........30 PERCENT WETTER.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 9 MPH WITH GUSTS TO AROUND 20
MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 11 MPH.
* MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....70 PERCENT.
* VENTILATION INDEX...VERY HIGH (849) IN THE EVENING DECREASING TO
LOW (151) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS IN
THE MORNING AND EARLY AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....61-69 VALLEYS AND 51-61 MOUNTAINS.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........35-50 PERCENT VALLEYS AND 50-65 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT DRIER VALLEYS, AND 5 PERCENT DRIER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 8 MPH WITH GUSTS TO AROUND 20
MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 8 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...HIGH (568) IN THE MORNING INCREASING TO HIGH
(794) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS EARLY
IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....40-47.
* MAX HUMIDITY........71-90 PERCENT VALLEYS AND 65-80 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 4 MPH IN THE EVENING BECOMING
LIGHT OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE NORTH 3 TO 4 MPH OVERNIGHT.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...MODERATE (434) IN THE EVENING DECREASING TO
LOW (38) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....62-69 VALLEYS AND 52-62 MOUNTAINS.
* MIN HUMIDITY........45-55 PERCENT VALLEYS AND 55-70 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...LIGHT WINDS IN THE MORNING BECOMING SOUTH 3
TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 4 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (473).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 40 TO
50. HIGHS 64 TO 72 VALLEYS...54 TO 64 MOUNTAINS. NORTHEAST WIND
UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 40 TO 50.
HIGHS 70 TO 78 VALLEYS...61 TO 70 MOUNTAINS. NORTH WIND UP TO
5 MPH.
LABOR DAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 44 TO 54. HIGHS 67 TO 74 VALLEYS...57 TO
66 MOUNTAINS. WEST WIND UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 43 TO
53. HIGHS 69 TO 76 VALLEYS...58 TO 68 MOUNTAINS.
WEDNESDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 72 TO
79 VALLEYS...62 TO 72 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
IDZ101-031345-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT WITH A CHANCE OF THUNDERSTORMS EARLY IN THE EVENING.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....AROUND 50 VALLEYS AND 42-48 MOUNTAINS.
* 24 HR TREND........3 DEGREES COOLER.
* MAX HUMIDITY........90-100 PERCENT.
* 24 HR TREND........10 PERCENT WETTER VALLEYS, AND 20 PERCENT
WETTER MOUNTAINS.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 9 MPH. GUSTS UP TO 20 MPH
OVERNIGHT.
* MIXING HEIGHT.......3000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....80 PERCENT.
* VENTILATION INDEX...MODERATE (274).
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. RAIN SHOWERS THROUGH THE DAY
WITH A CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....59-67 VALLEYS AND 50-60 MOUNTAINS.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........45-60 PERCENT VALLEYS AND 60-75 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 15 PERCENT DRIER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 8 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 8 MPH. GUSTS UP TO 20 MPH IN
THE MORNING.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....30 PERCENT.
* VENTILATION INDEX...MODERATE (486) IN THE MORNING INCREASING TO
HIGH (696) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS IN THE EVENING,
THEN RAIN SHOWERS LIKELY OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....42-47.
* MAX HUMIDITY........80-90 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 4 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 6 MPH IN THE EVENING DECREASING TO
3 TO 4 MPH OVERNIGHT.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....30 PERCENT.
* VENTILATION INDEX...MODERATE (328) IN THE EVENING DECREASING TO
LOW (72) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....61-68 VALLEYS AND 51-61 MOUNTAINS.
* MIN HUMIDITY........50-65 PERCENT VALLEYS AND 61-80 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 5 MPH.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....30 PERCENT.
* VENTILATION INDEX...MODERATE (459).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 41 TO
51. HIGHS 64 TO 71 VALLEYS...55 TO 65 MOUNTAINS. NORTH WIND UP TO
5 MPH.
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 42 TO 51. HIGHS 70 TO 76 VALLEYS...61 TO 71 MOUNTAINS.
NORTHEAST WIND UP TO 5 MPH.
LABOR DAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 45 TO 54. HIGHS 65 TO 72 VALLEYS...55 TO
65 MOUNTAINS. WEST WIND UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 44 TO
54. HIGHS 67 TO 73 VALLEYS...57 TO 67 MOUNTAINS.
WEDNESDAY
MOSTLY CLEAR. A CHANCE OF RAIN SHOWERS. LOWS 45 TO
55. HIGHS 71 TO 78 VALLEYS...62 TO 72 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ707-031345-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....48-52.
* 24 HR TREND........5 DEGREES COOLER.
* MAX HUMIDITY........81-100 PERCENT.
* 24 HR TREND........10 PERCENT WETTER.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......SOUTH 6 TO 17 MPH. GUSTS UP TO 35 MPH IN THE
EVENING.
* MIXING HEIGHT.......3000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...HIGH (678) IN THE EVENING DECREASING TO
MODERATE (224) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....67-72.
* 24 HR TREND........5 DEGREES COOLER.
* MIN HUMIDITY........35-50 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......SOUTH 3 TO 11 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (571) IN THE MORNING INCREASING TO HIGH
(774) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....46-50.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 7 MPH.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (550) IN THE EVENING DECREASING TO LOW
(100) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....67-72.
* MIN HUMIDITY........40-55 PERCENT.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (437) IN THE MORNING INCREASING TO
HIGH (610) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 46 TO 56. HIGHS 70 TO 79. NORTH WIND UP TO 10 MPH.
LABOR DAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
60. HIGHS 73 TO 79. WEST WIND 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 49 TO
59. HIGHS 76 TO 81.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 79 TO 85.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ708-031345-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....48-54.
* 24 HR TREND........4 DEGREES COOLER.
* MAX HUMIDITY........90 PERCENT.
* 24 HR TREND........10 PERCENT WETTER.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......SOUTH 5 TO 16 MPH WITH GUSTS TO AROUND 30
MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....30 PERCENT.
* VENTILATION INDEX...VERY HIGH (914) IN THE EVENING DECREASING TO
MODERATE (266) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....64-71.
* 24 HR TREND........4 DEGREES COOLER.
* MIN HUMIDITY........35-50 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......SOUTH 3 TO 11 MPH.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...HIGH (637) IN THE MORNING INCREASING TO VERY
HIGH (840) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE LATE EVENING AND OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....44-50.
* MAX HUMIDITY........80-90 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTH 3 TO 7 MPH.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...HIGH (525) IN THE EVENING DECREASING TO LOW
(145) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....64-71.
* MIN HUMIDITY........45-55 PERCENT.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...HIGH (521).
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 42 TO 50. HIGHS 69 TO 79. NORTH WIND UP TO 10 MPH.
LABOR DAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 47 TO
54. HIGHS 69 TO 76. WEST WIND UP TO 10 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO
53. HIGHS 72 TO 79.
WEDNESDAY
MOSTLY CLEAR. LOWS 46 TO 54. HIGHS 76 TO 83.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ709-031345-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT WITH A CHANCE OF THUNDERSTORMS EARLY IN THE EVENING.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....50-55.
* 24 HR TREND........7 DEGREES COOLER.
* MAX HUMIDITY........80-90 PERCENT.
* 24 HR TREND........30 PERCENT WETTER.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 10 MPH.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....70 PERCENT.
* VENTILATION INDEX...HIGH (599) IN THE EVENING DECREASING TO LOW
(197) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. RAIN SHOWERS THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....62-72.
* 24 HR TREND........6 DEGREES COOLER.
* MIN HUMIDITY........45-60 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......SOUTH 3 TO 9 MPH IN THE MORNING SHIFTING TO
THE WEST 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (476).
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....47-52.
* MAX HUMIDITY........80-90 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTH 3 TO 5 MPH.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...LOW (197).
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....61-71.
* MIN HUMIDITY........50-65 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....30 PERCENT.
* VENTILATION INDEX...MODERATE (423).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO
51. HIGHS 67 TO 77. EAST WIND UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS NEAR 50.
HIGHS 70 TO 80. NORTHWEST WIND UP TO 5 MPH.
LABOR DAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER TO MID 50S. HIGHS 67 TO 77.
SOUTHWEST WIND UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS IN THE
LOWER TO MID 50S. HIGHS 71 TO 81.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 50S. HIGHS
75 TO 85.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ705-706-031345-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF CHELAN, WENATCHEE, WATERVILLE,
AND GRAND COULEE
313 PM PDT WED SEP 2 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....47-54.
* 24 HR TREND........6 DEGREES COOLER.
* MAX HUMIDITY........80-90 PERCENT.
* 24 HR TREND........20 PERCENT WETTER.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST 7 TO 18 MPH WITH GUSTS TO AROUND 35
MPH.
* MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...VERY HIGH (966) IN THE EVENING DECREASING TO
MODERATE (343) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...10 PERCENT.
* MAX TEMPERATURE.....63-72.
* 24 HR TREND........3 DEGREES COOLER.
* MIN HUMIDITY........35-45 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......SOUTH 3 TO 10 MPH.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...MODERATE (442) IN THE MORNING INCREASING TO
HIGH (687) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....46-53.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 7 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST UP TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....5 PERCENT.
* VENTILATION INDEX...HIGH (502) IN THE EVENING DECREASING TO LOW
(43) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....64-72.
* MIN HUMIDITY........40-50 PERCENT.
* 20-FOOT WINDS.......NORTHWEST UP TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (324) IN THE MORNING INCREASING TO
HIGH (557) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 48 TO
58. HIGHS 65 TO 75. NORTH WIND UP TO 5 MPH.
SUNDAY THROUGH LABOR DAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 51 TO 61. HIGHS 70 TO 80. WEST WIND UP TO 10 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 52 TO
61. HIGHS 72 TO 82.
WEDNESDAY
MOSTLY CLEAR. LOWS 53 TO 62. HIGHS 75 TO 85.
.8 TO 14 DAY OUTLOOK FOR SEP 10 - 16 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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