950
FNUS56 KOTX 131210
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
510 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 10 PM PDT THIS
EVENING FOR FIRE ZONES 696,697,698...
...RED FLAG WARNING IN EFFECT UNTIL 8 AM PDT THIS MORNING FOR
FIRE ZONES 101,700,701...
DISCUSSION
CENTRAL WA:
- 20 TO 40 PERCENT CHANCE OF THUNDERSTORMS IN AND NEAR THE
CASCADES THURSDAY AFTERNOON AND EVENING.
- BREEZY NORTH-NORTHEAST WINDS GUSTING UP TO 20 MPH OKANOGAN
VALLEY AND NORTHERN COLUMBIA BASIN.
- FAIR TO GOOD RH RECOVERY THURSDAY NIGHT.
EASTERN WA:
- 10 TO 20 PERCENT CHANCE OF THUNDERSTORMS REDEVELOPING OVER THE
NORTHERN MOUNTAINS THURSDAY AFTERNOON.
- BREEZY NORTH-NORTHEAST WINDS GUSTING UP TO 20 MPH SPOKANE AREA
AND WEST PLAINS.
- GOOD TO EXCELLENT RH RECOVERY THURSDAY NIGHT.
NORTH ID:
- 10 TO 20 PERCENT CHANCE OF THUNDERSTORMS REDEVELOPING OVER THE
MOUNTAINS THURSDAY AFTERNOON.
- BREEZY NORTH-NORTHEAST WINDS GUSTING UP TO 25 MPH PURCELL TRENCH
AREA.
- EXCELLENT RH RECOVER THURSDAY NIGHT.
SHOWERS AND THUNDERSTORMS LINGER PRIMARILY OVER THE CASCADES
THURSDAY AND FRIDAY THEN TEMPERATURES TREND UPWARD HEADING INTO
THE WEEKEND. ISOLATED THUNDERSTORM RISK CONTINUES INTO NEXT WEEK.
***************************************************************
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).
***************************************************************
WAZ696-698-140115-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
510 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 10 PM PDT THIS
EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND AREAS OF SMOKE THROUGH
THE DAY. A CHANCE OF RAIN SHOWERS IN THE LATE MORNING AND
AFTERNOON. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20-40 PERCENT.
* MAX TEMPERATURE.....75-85 VALLEYS AND 63-73 MOUNTAINS.
* 24 HR TREND........3 DEGREES COOLER.
* MIN HUMIDITY........30-45 PERCENT VALLEYS AND 40-55 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT WETTER VALLEYS, AND UNCHANGED
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 7 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...HIGH (641).
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING. A CHANCE OF RAIN
SHOWERS IN THE EVENING. A CHANCE OF RAIN SHOWERS OVERNIGHT.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....55-65 VALLEYS AND 48-58 MOUNTAINS.
* 24 HR TREND........8 DEGREES WARMER.
* MAX HUMIDITY........61-80 PERCENT.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND UNCHANGED
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTH UP TO 5 MPH.
* MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (386) IN THE EVENING DECREASING TO
LOW (48) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING. A CHANCE OF THUNDERSTORMS LATE IN THE MORNING, THEN RAIN
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...50 PERCENT.
* MAX TEMPERATURE.....73-83 VALLEYS AND 62-72 MOUNTAINS.
* MIN HUMIDITY........40-55 PERCENT VALLEYS AND 55-70 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 3 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....30 PERCENT.
* VENTILATION INDEX...MODERATE (269) IN THE MORNING INCREASING TO
MODERATE (469) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 54 TO
64 VALLEYS...47 TO 57 MOUNTAINS. HIGHS 77 TO 87 VALLEYS...65 TO
75 MOUNTAINS. WEST WIND UP TO 5 MPH.
SUNDAY...MOSTLY CLOUDY. LOWS 56 TO 66 VALLEYS
50 TO
60 MOUNTAINS. HIGHS 80 TO 90 VALLEYS...67 TO 77 MOUNTAINS. WEST
WIND UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 56 TO
66 VALLEYS...50 TO 60 MOUNTAINS. HIGHS 80 TO 90 VALLEYS...68 TO
78 MOUNTAINS. WEST WIND UP TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 55 TO 65 VALLEYS...49 TO 59 MOUNTAINS. HIGHS 76 TO
86 VALLEYS...64 TO 74 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ697-140115-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
510 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 10 PM PDT THIS
EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE IN THE MORNING.
HAZE IN THE LATE MORNING AND AFTERNOON. A CHANCE OF RAIN SHOWERS
IN THE LATE MORNING AND AFTERNOON. A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHANCE OF LIGHTNING...20-40 PERCENT.
* MAX TEMPERATURE.....76-86 VALLEYS AND 64-74 MOUNTAINS.
* 24 HR TREND........5 DEGREES WARMER.
* MIN HUMIDITY........35-45 PERCENT VALLEYS AND 40-55 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 4 MPH IN THE MORNING SHIFTING
TO THE EAST IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 6 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (496).
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING. A CHANCE OF RAIN
SHOWERS IN THE EVENING. A CHANCE OF RAIN SHOWERS OVERNIGHT.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....57-66 VALLEYS AND 48-58 MOUNTAINS.
* 24 HR TREND........2 DEGREES WARMER.
* MAX HUMIDITY........60-70 PERCENT VALLEYS AND 65-80 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST AROUND 3 MPH IN THE EVENING
SHIFTING TO THE NORTHEAST OVERNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTHEAST 3 TO 7 MPH OVERNIGHT.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (226).
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY. A
CHANCE OF THUNDERSTORMS IN THE MORNING. RAIN SHOWERS THROUGH THE
DAY. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...50 PERCENT.
* MAX TEMPERATURE.....74-84 VALLEYS AND 62-72 MOUNTAINS.
* MIN HUMIDITY........45-60 PERCENT VALLEYS AND 55-70 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST UP TO 3 MPH IN THE MORNING
SHIFTING TO THE SOUTHWEST 3 TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....40 PERCENT.
* VENTILATION INDEX...MODERATE (253) IN THE MORNING INCREASING TO
HIGH (619) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 56 TO
64 VALLEYS...46 TO 56 MOUNTAINS. HIGHS 78 TO 88 VALLEYS...65 TO
75 MOUNTAINS. WEST WIND UP TO 5 MPH.
SUNDAY...MOSTLY CLOUDY. LOWS 57 TO 66 VALLEYS
49 TO
59 MOUNTAINS. HIGHS 79 TO 89 VALLEYS...67 TO 77 MOUNTAINS. WEST
WIND UP TO 10 MPH.
MONDAY...PARTLY CLOUDY. LOWS 57 TO 66 VALLEYS
48 TO
58 MOUNTAINS. HIGHS 79 TO 89 VALLEYS...67 TO 77 MOUNTAINS. WEST
WIND UP TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 56 TO 66 VALLEYS...48 TO 58 MOUNTAINS. HIGHS 75 TO
85 VALLEYS...63 TO 73 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ704-140115-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE IN THE MORNING.
HAZE IN THE LATE MORNING AND AFTERNOON. AREAS OF SMOKE LATE IN
THE AFTERNOON. A CHANCE OF RAIN SHOWERS IN THE LATE MORNING AND
AFTERNOON. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....77-86.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........28-35 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......NORTH UP TO 5 MPH IN THE MORNING SHIFTING TO
THE NORTHEAST 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (532) IN THE MORNING INCREASING TO HIGH
(759) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. A CHANCE OF RAIN SHOWERS IN THE EVENING. A
CHANCE OF RAIN SHOWERS OVERNIGHT.
* CHANCE OF LIGHTNING...20 PERCENT.
* MIN TEMPERATURE.....54-64.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........60-75 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......NORTH UP TO 6 MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (459) IN THE EVENING DECREASING TO
LOW (39) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
* CHANCE OF LIGHTNING...50 PERCENT.
* MAX TEMPERATURE.....76-84.
* MIN HUMIDITY........35-45 PERCENT.
* 20-FOOT WINDS.......LIGHT WINDS IN THE MORNING BECOMING SOUTH 3
TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....20 PERCENT.
* VENTILATION INDEX...MODERATE (236) IN THE MORNING INCREASING TO
MODERATE (468) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 62. HIGHS 79 TO 88. WEST
WIND UP TO 5 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 55 TO 65. HIGHS 82 TO 91. WEST WIND
UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 55 TO 65.
HIGHS 83 TO 92. WEST WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 55 TO 65. HIGHS 79 TO 89.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ703-140115-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE IN THE MORNING.
HAZE IN THE LATE MORNING AND EARLY AFTERNOON. A CHANCE OF RAIN
SHOWERS IN THE LATE MORNING AND AFTERNOON. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...10 PERCENT.
* MAX TEMPERATURE.....77-86.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........29-40 PERCENT.
* 24 HR TREND........7 PERCENT WETTER.
* 20-FOOT WINDS.......NORTH 3 TO 9 MPH WITH GUSTS TO AROUND 20 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (609) IN THE MORNING INCREASING TO HIGH
(792) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
CHANCE OF RAIN SHOWERS.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-64.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......NORTH 3 TO 7 MPH.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (600) IN THE EVENING DECREASING TO LOW
(41) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
LATE MORNING AND AFTERNOON. A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...10 PERCENT.
* MAX TEMPERATURE.....77-86.
* MIN HUMIDITY........29-40 PERCENT.
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (219) IN THE MORNING INCREASING TO
HIGH (644) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 57 TO 63. HIGHS 81 TO 89.
NORTHWEST WIND UP TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 59 TO 66. HIGHS 83 TO 91. NORTHWEST
WIND UP TO 10 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 60 TO 66.
HIGHS 83 TO 91. NORTHWEST WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 59 TO 66. HIGHS 79 TO 89.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ702-140115-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....75-85 VALLEYS AND 67-76 MOUNTAINS.
* 24 HR TREND........4 DEGREES COOLER.
* MIN HUMIDITY........35-45 PERCENT VALLEYS AND 45-60 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT WETTER VALLEYS, AND UNCHANGED
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 8 MPH. GUSTS UP TO 20 MPH IN
THE MORNING.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 8 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (417) IN THE MORNING INCREASING TO
HIGH (557) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-60.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........60-75 PERCENT.
* 24 HR TREND........35 PERCENT DRIER VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 9 MPH WITH GUSTS TO AROUND 20
MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 11 MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (460) IN THE EVENING DECREASING TO
LOW (72) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS EARLY
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....76-86 VALLEYS AND 69-79 MOUNTAINS.
* MIN HUMIDITY........30-40 PERCENT VALLEYS AND 35-50 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 8 MPH WITH GUSTS TO AROUND 20
MPH IN THE MORNING SHIFTING TO THE SOUTHEAST 3 TO 4 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 9 MPH IN THE MORNING SHIFTING
TO THE SOUTHEAST 3 TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (277) IN THE MORNING INCREASING TO
HIGH (664) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 53 TO 61. HIGHS 80 TO
90 VALLEYS...72 TO 81 MOUNTAINS. NORTHEAST WIND UP TO 5 MPH.
SUNDAY...MOSTLY CLOUDY. LOWS 57 TO 64. HIGHS 82 TO 92 VALLEYS
74 TO 84 MOUNTAINS. NORTHWEST WIND UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 58 TO 64.
HIGHS 81 TO 91 VALLEYS...75 TO 85 MOUNTAINS. WEST WIND UP TO
5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 56 TO 64. HIGHS 78 TO 88 VALLEYS...71 TO
81 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ699-140115-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS EARLY
IN THE MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
LATE MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....72-82 VALLEYS AND 66-76 MOUNTAINS.
* 24 HR TREND........4 DEGREES COOLER.
* MIN HUMIDITY........35-50 PERCENT VALLEYS AND 45-60 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 6 MPH.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (440) IN THE MORNING INCREASING TO
HIGH (598) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....48-58.
* 24 HR TREND........2 DEGREES COOLER.
* MAX HUMIDITY........75-90 PERCENT VALLEYS AND 65-80 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 15 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 7 MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (421) IN THE EVENING DECREASING TO
LOW (46) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
LATE MORNING AND AFTERNOON. A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....75-85 VALLEYS AND 68-77 MOUNTAINS.
* MIN HUMIDITY........30-45 PERCENT VALLEYS AND 40-55 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 6 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (233) IN THE MORNING INCREASING TO
MODERATE (455) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS 78 TO
88 VALLEYS...71 TO 80 MOUNTAINS. EAST WIND UP TO 5 MPH.
SUNDAY...MOSTLY CLOUDY. LOWS 51 TO 61. HIGHS 81 TO 91 VALLEYS
73 TO 83 MOUNTAINS. NORTHWEST WIND UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 62. HIGHS 81 TO 90 VALLEYS...74 TO 83 MOUNTAINS.
NORTHWEST WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 52 TO 62. HIGHS 77 TO 87 VALLEYS...70 TO
80 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ700-701-140115-
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
510 AM PDT THU AUG 13 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 AM PDT THIS MORNING
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....73-81 VALLEYS AND 62-72 MOUNTAINS.
* 24 HR TREND........7 DEGREES COOLER.
* MIN HUMIDITY........40-55 PERCENT VALLEYS AND 55-70 PERCENT
MOUNTAINS.
* 24 HR TREND........15 PERCENT WETTER VALLEYS, AND 20 PERCENT
WETTER MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 9 MPH.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (328) IN THE MORNING INCREASING TO
HIGH (542) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....46-56.
* 24 HR TREND........5 DEGREES COOLER.
* MAX HUMIDITY........80-90 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 11 MPH WITH GUSTS TO AROUND
20 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 14 MPH WITH GUSTS TO AROUND
25 MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (534) IN THE EVENING DECREASING TO LOW
(64) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS EARLY
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....76-84 VALLEYS AND 66-76 MOUNTAINS.
* MIN HUMIDITY........35-50 PERCENT VALLEYS AND 45-60 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 8 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 8 MPH.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (454).
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 57. HIGHS 80 TO
88 VALLEYS...70 TO 80 MOUNTAINS. NORTHEAST WIND UP TO 5 MPH.
SUNDAY...MOSTLY CLOUDY. LOWS 51 TO 61. HIGHS 82 TO 90 VALLEYS
72 TO 82 MOUNTAINS. NORTHEAST WIND UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 52 TO 62.
HIGHS 82 TO 89 VALLEYS...72 TO 82 MOUNTAINS. SOUTHWEST WIND UP TO
5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 51 TO 61. HIGHS 76 TO 86 VALLEYS...68 TO
78 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
IDZ101-140115-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
510 AM PDT THU AUG 13 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 AM PDT THIS MORNING
TODAY
* SKY/WEATHER.........PARTLY 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.....72-82 VALLEYS AND 64-74 MOUNTAINS.
* 24 HR TREND........13 DEGREES COOLER.
* MIN HUMIDITY........40-55 PERCENT VALLEYS AND 50-65 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT WETTER VALLEYS, AND 15 PERCENT
WETTER MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH 3 TO 10 MPH WITH GUSTS TO AROUND 20
MPH.
* RIDGES/UPR SLOPES....NORTH 3 TO 10 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (310) IN THE MORNING INCREASING TO
HIGH (543) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS EARLY
IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....47-57.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........80-90 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 13 MPH WITH GUSTS TO AROUND
25 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 4 TO 15 MPH.
* MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (469) IN THE EVENING DECREASING TO
LOW (67) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS
THROUGH THE DAY. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....75-84 VALLEYS AND 66-76 MOUNTAINS.
* MIN HUMIDITY........40-55 PERCENT VALLEYS AND 50-65 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 9 MPH. GUSTS UP TO 20 MPH IN
THE MORNING.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 9 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....10 PERCENT.
* VENTILATION INDEX...MODERATE (306) IN THE MORNING INCREASING TO
HIGH (675) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS 79 TO
87 VALLEYS...70 TO 80 MOUNTAINS. NORTHEAST WIND UP TO 5 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 51 TO 60. HIGHS 82 TO 90 VALLEYS
73 TO 83 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...MOSTLY CLOUDY. LOWS 52 TO 62. HIGHS 81 TO 89 VALLEYS
72 TO 82 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 51 TO 61. HIGHS 75 TO 85 VALLEYS...68 TO
78 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ707-140115-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE EARLY IN THE MORNING.
HAZE IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....83-88.
* 24 HR TREND........3 DEGREES COOLER.
* MIN HUMIDITY........26-40 PERCENT.
* 24 HR TREND........6 PERCENT WETTER.
* 20-FOOT WINDS.......NORTH 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
MORNING.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (426) IN THE MORNING INCREASING TO
HIGH (714) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-65.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........61-80 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......NORTH 4 TO 11 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......8000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (697) IN THE EVENING DECREASING TO LOW
(77) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....84-89.
* MIN HUMIDITY........26-40 PERCENT.
* 20-FOOT WINDS.......NORTH 3 TO 10 MPH.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (389) IN THE MORNING INCREASING TO
HIGH (636) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 56 TO 64. HIGHS 87 TO 92. NORTH
WIND UP TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 58 TO 66. HIGHS 89 TO 94. WEST WIND
UP TO 10 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 59 TO 66. HIGHS 88 TO 93. WEST WIND
UP TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 56 TO 66. HIGHS 82 TO 91.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ708-140115-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE EARLY IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-89.
* 24 HR TREND........5 DEGREES COOLER.
* MIN HUMIDITY........29-40 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......NORTH 3 TO 10 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (410) IN THE MORNING INCREASING TO
HIGH (680) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....50-59.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........71-90 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......NORTHEAST 3 TO 11 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (682) IN THE EVENING DECREASING TO LOW
(86) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....82-91.
* MIN HUMIDITY........26-35 PERCENT.
* 20-FOOT WINDS.......NORTH 3 TO 10 MPH.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (380) IN THE MORNING INCREASING TO
HIGH (723) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 51 TO 59. HIGHS 86 TO 94. EAST
WIND UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 62. HIGHS 88 TO 95. SOUTH
WIND UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 55 TO 63. HIGHS 87 TO 94. SOUTHWEST
WIND UP TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 54 TO
62. HIGHS 83 TO 90.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 51 TO
60. HIGHS 80 TO 87.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ709-140115-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE UNTIL LATE AFTERNOON.
HAZE IN THE LATE MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-91.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........25-35 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......WEST 3 TO 10 MPH.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (378) IN THE MORNING INCREASING TO
HIGH (710) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-62.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........65-80 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......NORTHWEST 3 TO 9 MPH WITH GUSTS TO AROUND 20
MPH IN THE EVENING SHIFTING TO THE SOUTHWEST 3 TO 5 MPH
OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (615) IN THE EVENING DECREASING TO LOW
(36) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING. A CHANCE OF RAIN SHOWERS IN THE AFTERNOON. A CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....82-92.
* MIN HUMIDITY........25-35 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE NORTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (314) IN THE MORNING INCREASING TO
VERY HIGH (874) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 85 TO 95. SOUTHEAST WIND UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS NEAR 60. HIGHS 87 TO 97. SOUTHWEST
WIND UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE LOWER
TO MID 60S. HIGHS 85 TO 95. SOUTHWEST WIND UP TO 5 MPH.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE LOWER
TO MID 60S. HIGHS 82 TO 92.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS NEAR
60. HIGHS 79 TO 89.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ705-706-140115-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF CHELAN, WENATCHEE, WATERVILLE,
AND GRAND COULEE
510 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE EARLY IN THE MORNING.
AREAS OF SMOKE UNTIL LATE AFTERNOON. HAZE EARLY IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....78-88.
* 24 HR TREND........4 DEGREES COOLER.
* MIN HUMIDITY........28-40 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......NORTH 3 TO 9 MPH.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (479) IN THE MORNING INCREASING TO
HIGH (664) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-66.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......NORTH UP TO 9 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (661) IN THE EVENING DECREASING TO LOW
(59) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS LATE
IN THE MORNING. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...10 PERCENT.
* MAX TEMPERATURE.....78-87.
* MIN HUMIDITY........30-40 PERCENT.
* 20-FOOT WINDS.......NORTH UP TO 8 MPH.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (314) IN THE MORNING INCREASING TO
HIGH (680) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 58 TO 65. HIGHS 82 TO 90.
NORTHWEST WIND UP TO 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. LOWS 61 TO 67. HIGHS
84 TO 93. WEST WIND UP TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 60 TO
67. HIGHS 82 TO 90.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 58 TO
65. HIGHS 79 TO 87.
.8 TO 14 DAY OUTLOOK FOR AUG 20 - 26 2026
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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