492
FNUS56 KOTX 042104
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
ISSUED BY NATIONAL WEATHER SERVICE SEATTLE WA
204 PM PDT TUE AUG 4 2026
DISCUSSION
CENTRAL WA:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERIES TUESDAY NIGHT.
- UNHEALTHY AIR QUALITY DUE TO SMOKE.
- INCREASING WINDS FRIDAY AND SATURDAY WITH A 40-70% CHANCE OF
WIND GUSTS OVER 30 MPH.
EASTERN WA:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERIES TUESDAY NIGHT.
- UNHEALTHY AIR QUALITY DUE TO SMOKE.
- INCREASING WINDS FRIDAY AND SATURDAY WITH A 30-60% CHANCE OF
WIND GUSTS OVER 20 MPH. LESS THAN 5% CHANCE OF WIND GUSTS OVER
30 MPH.
NORTH ID:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERIES TUESDAY NIGHT.
- UNHEALTHY AIR QUALITY DUE TO SMOKE.
- INCREASING WINDS FRIDAY AND SATURDAY WITH A 50-80% CHANCE OF
WIND GUSTS OVER 20 MPH. LESS THAN 5% CHANCE OF WIND GUSTS OVER
30 MPH.
DRY CONDITIONS WILL CONTINUE WITH DAYTIME TEMPERATURES TRENDING
WARMER THROUGH THURSDAY AND FRIDAY. GENERALLY LIGHT WINDS WILL
PERSIST THROUGH THURSDAY. EXPECT RELATIVE HUMIDITIES AS LOW AS
10-20% DURING THE DAY, ALONG WITH POOR OVERNIGHT RECOVERY.
INCREASING WINDS WILL LEAD TO ELEVATED TO CRITICAL FIRE WEATHER
CONDITIONS FRIDAY AND SATURDAY. A RETURN TO NEAR-NORMAL
TEMPERATURES, IMPROVING OVERNIGHT RECOVERIES, AND LIMITED WINDS
ARE ON TRACK FOR EARLY 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).
***************************************************************
WAZ696-698-051330-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-65 VALLEYS AND 49-59 MOUNTAINS.
* 24 HR TREND........10 DEGREES WARMER.
* MAX HUMIDITY........35-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER VALLEYS, AND 5 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 7 MPH.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (444) IN THE EVENING DECREASING TO
LOW (38) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....86-96 VALLEYS AND 74-84 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........17-27 PERCENT.
* 24 HR TREND........1 PERCENT WETTER VALLEYS, AND 4 PERCENT DRIER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 9 MPH WITH GUSTS TO AROUND 20
MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (334) IN THE MORNING INCREASING TO
HIGH (742) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE EARLY IN THE EVENING,
THEN AREAS OF SMOKE IN THE LATE EVENING AND EARLY MORNING. PATCHY
SMOKE EARLY IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-67 VALLEYS AND 51-61 MOUNTAINS.
* MAX HUMIDITY........30-45 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 9 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (651) IN THE EVENING DECREASING TO LOW
(57) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-99 VALLEYS AND 77-87 MOUNTAINS.
* MIN HUMIDITY........13-23 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 7 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST 3 TO 8 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (274) IN THE MORNING INCREASING TO
VERY HIGH (841) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY...MOSTLY CLEAR. LOWS 59 TO 69 VALLEYS
53 TO 63 MOUNTAINS. HIGHS 86 TO 96 VALLEYS...74 TO 84 MOUNTAINS.
WEST WIND 5 TO 15 MPH.
SUNDAY...MOSTLY CLEAR. LOWS 55 TO 65 VALLEYS
48 TO
58 MOUNTAINS. HIGHS 80 TO 90 VALLEYS...69 TO 79 MOUNTAINS. WEST
WIND 5 TO 15 MPH.
MONDAY THROUGH TUESDAY...MOSTLY CLEAR. LOWS 55 TO 65 VALLEYS
49 TO 59 MOUNTAINS. HIGHS 81 TO 91 VALLEYS...69 TO 79 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ697-051330-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE AND SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-66 VALLEYS AND 49-59 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MAX HUMIDITY........35-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 10 MPH IN THE EVENING
SHIFTING TO THE NORTHEAST 3 TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (427) IN THE EVENING DECREASING TO
LOW (24) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....86-96 VALLEYS AND 74-84 MOUNTAINS.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........17-26 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST 3 TO 4 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 4 TO 10 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (301) IN THE MORNING INCREASING TO
HIGH (650) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING,
THEN PATCHY SMOKE OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-67 VALLEYS AND 49-59 MOUNTAINS.
* MAX HUMIDITY........35-50 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 10 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 10 MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (528) IN THE EVENING DECREASING TO LOW
(37) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98 VALLEYS AND 76-86 MOUNTAINS.
* MIN HUMIDITY........14-23 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 9 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (243) IN THE MORNING INCREASING TO
HIGH (672) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 59 TO 69 VALLEYS
52 TO
62 MOUNTAINS. HIGHS 86 TO 96 VALLEYS...74 TO 84 MOUNTAINS. WEST
WIND 5 TO 15 MPH.
SATURDAY THROUGH SUNDAY...MOSTLY CLEAR. LOWS 56 TO 66 VALLEYS
48 TO 58 MOUNTAINS. HIGHS 80 TO 90 VALLEYS...68 TO 78 MOUNTAINS.
WEST WIND 5 TO 15 MPH.
MONDAY THROUGH TUESDAY...MOSTLY CLEAR. LOWS 55 TO 65 VALLEYS
47 TO 57 MOUNTAINS. HIGHS 79 TO 89 VALLEYS...67 TO 77 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ704-051330-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-64.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........35-45 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE NORTHWEST 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (471) IN THE EVENING DECREASING TO
LOW (39) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-97.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........13-17 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......NORTHEAST UP TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHEAST 4 TO 8 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (310) IN THE MORNING INCREASING TO
HIGH (759) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE IN THE EVENING, THEN
AREAS OF SMOKE OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-66.
* MAX HUMIDITY........30-40 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 7 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (683) IN THE EVENING DECREASING TO LOW
(52) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-101.
* MIN HUMIDITY........10-13 PERCENT.
* 20-FOOT WINDS.......NORTHWEST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH IN THE AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (260) IN THE MORNING INCREASING TO
VERY HIGH (816) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 59 TO 69. HIGHS
91 TO 101. NORTHWEST WIND 4 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 56 TO 65. HIGHS 85 TO 95. WEST WIND
UP TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 57 TO 66. HIGHS
84 TO 94.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ703-051330-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-64.
* 24 HR TREND........4 DEGREES WARMER.
* MAX HUMIDITY........30-40 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTH 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (388) IN THE EVENING DECREASING TO
LOW (33) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-97.
* 24 HR TREND........2 DEGREES WARMER.
* MIN HUMIDITY........12-17 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......NORTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTH 4 TO 12 MPH WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (221) IN THE MORNING INCREASING TO
VERY HIGH (979) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....60-66.
* MAX HUMIDITY........29-40 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTH 3 TO 10 MPH WITH GUSTS TO AROUND 25 MPH
IN THE EVENING SHIFTING TO THE NORTHWEST 3 TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (759) IN THE EVENING DECREASING TO LOW
(44) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-100.
* MIN HUMIDITY........10-14 PERCENT.
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (193) IN THE MORNING INCREASING TO HIGH
(672) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 62 TO 70. HIGHS
91 TO 101. NORTHWEST WIND 4 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS 86 TO 95. NORTHWEST
WIND UP TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 61 TO 68. HIGHS
86 TO 95.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ702-051330-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-61.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........30-40 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 5 MPH IN THE EVENING
SHIFTING TO THE NORTH UP TO 4 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 5 MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (451) IN THE EVENING DECREASING TO
LOW (28) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....86-96 VALLEYS AND 78-88 MOUNTAINS.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........12-17 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 7 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (362) IN THE MORNING INCREASING TO
HIGH (755) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE EARLY IN THE EVENING,
THEN AREAS OF SMOKE IN THE LATE EVENING AND EARLY MORNING. SMOKE
EARLY IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-64.
* MAX HUMIDITY........28-35 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 7 MPH IN THE EVENING SHIFTING TO
THE NORTHEAST UP TO 4 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTH 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (650) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-99 VALLEYS AND 82-92 MOUNTAINS.
* MIN HUMIDITY........10-15 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 4 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (320) IN THE MORNING INCREASING TO
VERY HIGH (852) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 60 TO 66. HIGHS
90 TO 100 VALLEYS...82 TO 92 MOUNTAINS. WEST WIND UP TO 10 MPH.
SUNDAY...MOSTLY CLEAR. LOWS 58 TO 64. HIGHS 85 TO 95 VALLEYS
78 TO 88 MOUNTAINS. WEST WIND UP TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 59 TO 64. HIGHS
84 TO 94 VALLEYS...77 TO 87 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ699-051330-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE IN THE EVENING. HAZE LATE
IN THE EVENING, THEN AREAS OF SMOKE OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....50-60.
* 24 HR TREND........5 DEGREES WARMER.
* MAX HUMIDITY........40-55 PERCENT VALLEYS AND 35-45 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT DRIER VALLEYS, AND 5 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH UP TO 4 MPH.
* RIDGES/UPR SLOPES....NORTH UP TO 4 MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (521) IN THE EVENING DECREASING TO LOW
(26) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE EARLY IN THE MORNING,
THEN PATCHY SMOKE IN THE LATE MORNING AND EARLY AFTERNOON. AREAS
OF SMOKE LATE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....86-96 VALLEYS AND 78-87 MOUNTAINS.
* 24 HR TREND........6 DEGREES WARMER.
* MIN HUMIDITY........13-19 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 4 MPH IN THE MORNING
SHIFTING TO THE SOUTHWEST 3 TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 7 MPH.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (341) IN THE MORNING INCREASING TO
VERY HIGH (809) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-62.
* MAX HUMIDITY........35-50 PERCENT VALLEYS AND 28-40 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 7 MPH IN THE EVENING SHIFTING TO
THE NORTHEAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 6 MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (720) IN THE EVENING DECREASING TO LOW
(37) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-100 VALLEYS AND 82-92 MOUNTAINS.
* MIN HUMIDITY........11-16 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 3 MPH IN THE MORNING
SHIFTING TO THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH UP TO 3 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (331) IN THE MORNING INCREASING TO
VERY HIGH (928) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 56 TO 65. HIGHS
91 TO 101 VALLEYS...82 TO 92 MOUNTAINS. WEST WIND UP TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 55 TO 63. HIGHS 86 TO 96 VALLEYS
77 TO 87 MOUNTAINS. WEST WIND UP TO 5 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS 55 TO 64. HIGHS
85 TO 95 VALLEYS...77 TO 87 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ700-701-051330-
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
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....48-58.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 35-50 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST UP TO 3 MPH IN THE EVENING SHIFTING TO
THE NORTH OVERNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST UP TO 6 MPH.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (413) IN THE EVENING DECREASING TO
LOW (21) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE EARLY IN THE MORNING, THEN
PATCHY SMOKE LATE IN THE MORNING. AREAS OF SMOKE IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....85-93 VALLEYS AND 76-86 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........13-21 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 3 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST UP TO 7 MPH.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (295) IN THE MORNING INCREASING TO
HIGH (708) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE EARLY IN THE
EVENING, THEN SMOKE IN THE LATE EVENING AND OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-62.
* MAX HUMIDITY........40-55 PERCENT VALLEYS AND 30-45 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE EAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 7 MPH IN THE EVENING SHIFTING
TO THE EAST 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (615) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-98 VALLEYS AND 80-90 MOUNTAINS.
* MIN HUMIDITY........12-18 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 3 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (497) IN THE MORNING INCREASING TO
VERY HIGH (1066) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS
89 TO 99 VALLEYS...80 TO 90 MOUNTAINS. SOUTH WIND UP TO 10 MPH.
SUNDAY...MOSTLY CLEAR. LOWS 53 TO 63. HIGHS 85 TO 93 VALLEYS
76 TO 86 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 53 TO 63. HIGHS
84 TO 93 VALLEYS...75 TO 85 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
IDZ101-051330-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....48-57.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........50-65 PERCENT VALLEYS AND 40-50 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST UP TO 5 MPH IN THE EVENING
SHIFTING TO THE EAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (450) IN THE EVENING DECREASING TO
LOW (29) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. PATCHY SMOKE THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....83-92 VALLEYS AND 74-84 MOUNTAINS.
* 24 HR TREND........5 DEGREES WARMER.
* MIN HUMIDITY........16-26 PERCENT.
* 24 HR TREND........2 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST UP TO 4 MPH IN THE MORNING
SHIFTING TO THE WEST 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 8 MPH.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (323) IN THE MORNING INCREASING TO
HIGH (788) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING,
THEN PATCHY SMOKE OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-61.
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 35-45 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE SOUTHEAST UP TO 4 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 8 MPH IN THE EVENING SHIFTING
TO THE SOUTHEAST 3 TO 6 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...HIGH (599) IN THE EVENING DECREASING TO LOW
(36) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....87-96 VALLEYS AND 78-88 MOUNTAINS.
* MIN HUMIDITY........13-22 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 7 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 8 MPH WITH GUSTS TO AROUND 20 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (639) IN THE MORNING INCREASING TO VERY
HIGH (1122) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...CLEAR. LOWS 55 TO 64. HIGHS 88 TO 98 VALLEYS
79 TO
89 MOUNTAINS. SOUTH WIND UP TO 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 55 TO 64. HIGHS
84 TO 94 VALLEYS...75 TO 85 MOUNTAINS. SOUTHWEST WIND UP TO
10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 53 TO 62. HIGHS
82 TO 91 VALLEYS...74 TO 84 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ707-051330-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE EARLY IN THE
EVENING. HAZE THROUGH THE NIGHT. AREAS OF SMOKE IN THE LATE
EVENING AND OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....53-63.
* 24 HR TREND........4 DEGREES WARMER.
* MAX HUMIDITY........35-50 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 4 MPH IN THE EVENING SHIFTING
TO THE NORTH 3 TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (341) IN THE EVENING DECREASING TO
LOW (32) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE UNTIL LATE AFTERNOON,
THEN PATCHY SMOKE LATE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-95.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........11-17 PERCENT.
* 24 HR TREND........3 PERCENT DRIER.
* 20-FOOT WINDS.......NORTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (235) IN THE MORNING INCREASING TO
HIGH (605) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE EARLY IN THE
EVENING, THEN AREAS OF SMOKE IN THE LATE EVENING AND OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-65.
* MAX HUMIDITY........35-50 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE WEST OVERNIGHT.
* 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 (546) IN THE EVENING DECREASING TO LOW
(46) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....94-100.
* MIN HUMIDITY........11-16 PERCENT.
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (282) IN THE MORNING INCREASING TO
HIGH (686) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 59 TO 68. HIGHS 95 TO 101. WEST WIND 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 58 TO 67. HIGHS 93 TO 98. WEST
WIND 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 57 TO 65. HIGHS 88 TO 93. WEST WIND
5 TO 15 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 57 TO 64. HIGHS
88 TO 93.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ708-051330-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE IN THE EVENING.
HAZE THROUGH THE NIGHT. AREAS OF SMOKE OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....49-58.
* 24 HR TREND........4 DEGREES WARMER.
* MAX HUMIDITY........40-55 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......NORTH 3 TO 5 MPH IN THE EVENING SHIFTING TO
THE EAST UP TO 4 MPH OVERNIGHT.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (403) IN THE EVENING DECREASING TO
LOW (32) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE IN THE MORNING, THEN
PATCHY SMOKE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-96.
* 24 HR TREND........5 DEGREES WARMER.
* MIN HUMIDITY........10-14 PERCENT.
* 24 HR TREND........3 PERCENT DRIER.
* 20-FOOT WINDS.......EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (279) IN THE MORNING INCREASING TO
HIGH (581) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....53-61.
* MAX HUMIDITY........30-45 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE SOUTHEAST 3 TO 4 MPH OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (539) IN THE EVENING DECREASING TO LOW
(38) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-100.
* MIN HUMIDITY........10-13 PERCENT.
* 20-FOOT WINDS.......SOUTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (589) IN THE MORNING INCREASING TO VERY
HIGH (1020) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 56 TO 64. HIGHS 93 TO 100. SOUTHWEST WIND
UP TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 56 TO 64. HIGHS 91 TO 98.
SOUTHWEST WIND 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 56 TO 63. HIGHS 86 TO 93. SOUTHWEST
WIND 5 TO 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 54 TO 62. HIGHS
86 TO 93.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ709-051330-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.
HAZE THROUGH THE NIGHT. PATCHY SMOKE OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-59.
* 24 HR TREND........2 DEGREES WARMER.
* MAX HUMIDITY........30-45 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE SOUTHEAST OVERNIGHT.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (462) IN THE EVENING DECREASING TO
LOW (41) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. PATCHY SMOKE UNTIL LATE AFTERNOON,
THEN AREAS OF SMOKE LATE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98.
* 24 HR TREND........6 DEGREES WARMER.
* MIN HUMIDITY........10-14 PERCENT.
* 24 HR TREND........4 PERCENT DRIER.
* 20-FOOT WINDS.......EAST 3 TO 7 MPH IN THE MORNING SHIFTING TO
THE NORTH 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (469).
WEDNESDAY NIGHT
* SKY/WEATHER.........CLEAR. AREAS OF SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-63.
* MAX HUMIDITY........25-35 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE SOUTH OVERNIGHT.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (422) IN THE EVENING DECREASING TO
LOW (48) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-103.
* MIN HUMIDITY........9-13 PERCENT.
* 20-FOOT WINDS.......SOUTH 3 TO 7 MPH IN THE MORNING SHIFTING TO
THE WEST 3 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (533) IN THE MORNING INCREASING TO VERY
HIGH (967) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
CLEAR. LOWS 61 TO 67. HIGHS 92 TO 102.
SOUTHWEST WIND 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 60 TO 65. HIGHS 85 TO 95. SOUTHWEST
WIND 5 TO 15 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS
85 TO 95.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ705-706-051330-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF CHELAN, WENATCHEE, WATERVILLE,
AND GRAND COULEE
204 PM PDT TUE AUG 4 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE AND AREAS OF SMOKE UNTIL
EARLY MORNING, THEN SMOKE LATE IN THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-65.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........35-45 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST UP TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (356) IN THE EVENING DECREASING TO
LOW (38) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE UNTIL LATE AFTERNOON, THEN AREAS
OF SMOKE LATE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98.
* 24 HR TREND........5 DEGREES WARMER.
* MIN HUMIDITY........12-16 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......NORTHEAST UP TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 9 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (252) IN THE MORNING INCREASING TO
HIGH (749) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE THROUGH THE
NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-67.
* MAX HUMIDITY........30-40 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 8 MPH WITH GUSTS TO AROUND 20
MPH IN THE EVENING SHIFTING TO THE WEST 3 TO 7 MPH OVERNIGHT.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (679) IN THE EVENING DECREASING TO LOW
(57) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-102.
* MIN HUMIDITY........11-14 PERCENT.
* 20-FOOT WINDS.......NORTHWEST 3 TO 7 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (204) IN THE MORNING INCREASING TO
HIGH (777) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 61 TO 69. HIGHS
91 TO 101. WEST WIND 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 59 TO 66. HIGHS 85 TO 94. WEST WIND
5 TO 15 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 59 TO 67. HIGHS
85 TO 95.
.8 TO 14 DAY OUTLOOK FOR AUG 12 - 18 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
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