212
FNUS56 KOTX 052138
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
EVENING FOR FIRE ZONES 696,697,698,703,704,705,706,709...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING FOR FIRE ZONES 701,702,707,708...
DISCUSSION
CENTRAL WA:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERIES WEDNESDAY NIGHT.
- POSSIBLE RAPID FIRE GROWTH ALONG CASCADES AND OKANOGAN FOOTHILLS
FROM HOT, DRY, UNSTABLE CONDITIONS ON THURSDAY
- INCREASING WINDS FRIDAY AND SATURDAY WITH A 40-70% CHANCE OF
WIND GUSTS OVER 30 MPH.
EASTERN WA:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERIES WEDNESDAY 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 WEDNESDAY 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 CONTINUE AS DAYTIME TEMPERATURES TREND WARMER
THROUGH FRIDAY. 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 THE START OF 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).
***************************************************************
WAZ696-698-061330-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...
...HOT AND UNSTABLE FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-67 VALLEYS AND 51-61 MOUNTAINS.
* 24 HR TREND........8 DEGREES WARMER.
* MAX HUMIDITY........30-45 PERCENT.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 9 MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (543) IN THE EVENING DECREASING TO LOW
(54) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-99 VALLEYS AND 77-87 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........14-24 PERCENT.
* 24 HR TREND........7 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 8 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 8 MPH.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (222) IN THE MORNING INCREASING TO
HIGH (650) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-68 VALLEYS AND 53-63 MOUNTAINS.
* MAX HUMIDITY........30-45 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 9 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (578) IN THE EVENING DECREASING TO LOW
(59) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98 VALLEYS AND 77-87 MOUNTAINS.
* MIN HUMIDITY........16-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 12 MPH WITH GUSTS TO AROUND 25
MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 12 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (395) IN THE MORNING INCREASING TO
VERY HIGH (1106) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY...MOSTLY CLEAR. LOWS 57 TO 67 VALLEYS
51 TO 61 MOUNTAINS. HIGHS 82 TO 92 VALLEYS...70 TO 80 MOUNTAINS.
WEST WIND 4 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 55 TO
65 VALLEYS...49 TO 59 MOUNTAINS. HIGHS 79 TO 89 VALLEYS...67 TO
77 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ697-061330-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-67 VALLEYS AND 49-59 MOUNTAINS.
* 24 HR TREND........3 DEGREES COOLER.
* MAX HUMIDITY........35-45 PERCENT VALLEYS AND 40-55 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 10 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 10 MPH.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (414) IN THE EVENING DECREASING TO
LOW (35) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....87-97 VALLEYS AND 75-85 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........15-25 PERCENT.
* 24 HR TREND........3 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 9 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (200) IN THE MORNING INCREASING TO
HIGH (554) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-68 VALLEYS AND 51-61 MOUNTAINS.
* MAX HUMIDITY........40-55 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 9 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (432) IN THE EVENING DECREASING TO
LOW (37) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....86-96 VALLEYS AND 74-84 MOUNTAINS.
* MIN HUMIDITY........19-29 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 4 TO 13 MPH.
* RIDGES/UPR SLOPES....WEST 4 TO 13 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (343) IN THE MORNING INCREASING TO
VERY HIGH (822) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY...MOSTLY CLEAR. LOWS 56 TO 66 VALLEYS
48 TO 58 MOUNTAINS. HIGHS 79 TO 89 VALLEYS...67 TO 77 MOUNTAINS.
WEST WIND 5 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 55 TO
65 VALLEYS...46 TO 56 MOUNTAINS. HIGHS 78 TO 88 VALLEYS...65 TO
75 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ704-061330-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....56-65.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........30-40 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......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...HIGH (550) IN THE EVENING DECREASING TO LOW
(52) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-100.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........10-14 PERCENT.
* 24 HR TREND........4 PERCENT DRIER.
* 20-FOOT WINDS.......NORTHWEST UP TO 5 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...MODERATE (249) IN THE MORNING INCREASING TO
HIGH (669) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-67.
* MAX HUMIDITY........30-45 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......NORTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (678) IN THE EVENING DECREASING TO LOW
(53) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-102.
* MIN HUMIDITY........12-15 PERCENT.
* 20-FOOT WINDS.......WEST 3 TO 10 MPH.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (386) IN THE MORNING INCREASING TO
VERY HIGH (1280) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 57 TO 67. HIGHS
88 TO 98. WEST WIND 4 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 56 TO 66. HIGHS
83 TO 93.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ703-061330-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....60-65.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........30-40 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTH 3 TO 10 MPH IN THE EVENING SHIFTING TO
THE NORTHWEST 3 TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (609) IN THE EVENING DECREASING TO LOW
(38) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-100.
* 24 HR TREND........5 DEGREES WARMER.
* MIN HUMIDITY........10-14 PERCENT.
* 24 HR TREND........2 PERCENT DRIER.
* 20-FOOT WINDS.......NORTH 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.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (140) IN THE MORNING INCREASING TO HIGH
(622) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....62-68.
* MAX HUMIDITY........30-40 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST 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...HIGH (563) IN THE EVENING DECREASING TO LOW
(42) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-102.
* MIN HUMIDITY........10-15 PERCENT.
* 20-FOOT WINDS.......NORTHWEST 3 TO 7 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 9 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (222) IN THE MORNING INCREASING TO
VERY HIGH (1084) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 61 TO 69. HIGHS
88 TO 98. WEST WIND 4 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 61 TO 67. HIGHS
84 TO 94.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ702-061330-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...
...HOT AND UNSTABLE FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-63.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........29-40 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH UP TO 7 MPH.
* 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 (517) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-99 VALLEYS AND 81-91 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........10-15 PERCENT.
* 24 HR TREND........2 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 4 MPH IN THE MORNING
INCREASING TO 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (195) IN THE MORNING INCREASING TO HIGH
(597) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....61-66.
* MAX HUMIDITY........26-35 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE NORTH AROUND 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTH 3 TO 5 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 (520) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-101 VALLEYS AND 83-93 MOUNTAINS.
* MIN HUMIDITY........11-15 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 5 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (346) IN THE MORNING INCREASING TO
VERY HIGH (1059) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 59 TO 66. HIGHS
86 TO 96 VALLEYS...79 TO 89 MOUNTAINS. SOUTHWEST WIND UP TO
10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 65. HIGHS
83 TO 93 VALLEYS...75 TO 85 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ699-061330-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
238 PM PDT WED AUG 5 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-62.
* 24 HR TREND........4 DEGREES WARMER.
* MAX HUMIDITY........35-50 PERCENT VALLEYS AND 30-40 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND UNCHANGED
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 6 MPH.
* 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 (551) IN THE EVENING DECREASING TO LOW
(40) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-99 VALLEYS AND 81-91 MOUNTAINS.
* 24 HR TREND........2 DEGREES WARMER.
* MIN HUMIDITY........11-16 PERCENT.
* 24 HR TREND........3 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 4 MPH IN THE MORNING
SHIFTING TO THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 6 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (185) IN THE MORNING INCREASING TO HIGH
(695) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-65.
* MAX HUMIDITY........30-45 PERCENT VALLEYS AND 27-35 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 5 MPH IN THE EVENING SHIFTING TO
THE NORTHEAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 5 MPH.
* 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 (588) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-102 VALLEYS AND 83-93 MOUNTAINS.
* MIN HUMIDITY........11-16 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH UP TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......11000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (393) IN THE MORNING INCREASING TO
VERY HIGH (1343) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
PARTLY CLOUDY. LOWS 56 TO 65. HIGHS
88 TO 98 VALLEYS...79 TO 89 MOUNTAINS. WEST WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 55 TO 64. HIGHS
84 TO 94 VALLEYS...75 TO 85 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ700-061330-
SELKIRK MOUNTAINS OF NORTHEAST WASHINGTON (ZONE 700)-
INCLUDING THE CITIES OF METALINE FALLS AND IONE
238 PM PDT WED AUG 5 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-59.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........35-45 PERCENT.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND UNCHANGED
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 5 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 7 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (507) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....87-96 VALLEYS AND 78-88 MOUNTAINS.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........13-21 PERCENT.
* 24 HR TREND........2 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 6 MPH.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (315) IN THE MORNING INCREASING TO
HIGH (706) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-62.
* MAX HUMIDITY........35-45 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 4 MPH IN THE EVENING SHIFTING TO
THE EAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE EAST 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (526) IN THE EVENING DECREASING TO LOW
(29) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-99 VALLEYS AND 81-91 MOUNTAINS.
* MIN HUMIDITY........13-21 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (454) IN THE MORNING INCREASING TO
VERY HIGH (1151) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 55 TO 62. HIGHS 87 TO
97 VALLEYS...79 TO 89 MOUNTAINS. SOUTH WIND UP TO 10 MPH.
SUNDAY...MOSTLY CLEAR. LOWS 54 TO 61. HIGHS 84 TO 94 VALLEYS
76 TO 86 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 53 TO 60. HIGHS 83 TO 93 VALLEYS
75 TO 85 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 53 TO 61. HIGHS
82 TO 92 VALLEYS...73 TO 83 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ701-061330-
FOOTHILLS OF NORTHEAST WASHINGTON (ZONE 701)-
INCLUDING THE CITIES OF COLVILLE, DEER PARK, AND NEWPORT
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....51-61 VALLEYS AND 57-63 MOUNTAINS.
* 24 HR TREND........5 DEGREES WARMER.
* MAX HUMIDITY........35-50 PERCENT VALLEYS AND 29-40 PERCENT
MOUNTAINS.
* 24 HR TREND........35 PERCENT DRIER VALLEYS, AND 16 PERCENT
WETTER MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTH UP TO 6 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...MODERATE (462) IN THE EVENING DECREASING TO
LOW (29) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-97 VALLEYS AND 82-90 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........12-15 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTH 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.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (378) IN THE MORNING INCREASING TO
VERY HIGH (814) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-64.
* MAX HUMIDITY........35-50 PERCENT VALLEYS AND 28-40 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE EAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTH 3 TO 6 MPH.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (687) IN THE EVENING DECREASING TO LOW
(25) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-99 VALLEYS AND 83-91 MOUNTAINS.
* MIN HUMIDITY........12-16 PERCENT.
* 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....SOUTHEAST 3 TO 7 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (362) IN THE MORNING INCREASING TO
VERY HIGH (1056) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS
86 TO 96 VALLEYS...79 TO 89 MOUNTAINS. SOUTH WIND UP TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 54 TO 64. HIGHS
82 TO 92 VALLEYS...75 TO 85 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
IDZ101-061330-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
238 PM PDT WED AUG 5 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-61.
* 24 HR TREND........4 DEGREES WARMER VALLEYS, AND 1 DEGREE COOLER
MOUNTAINS.
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 35-45 PERCENT
MOUNTAINS.
* 24 HR TREND........15 PERCENT DRIER VALLEYS, AND UNCHANGED
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 6 MPH IN THE EVENING
SHIFTING TO THE SOUTHEAST UP TO 4 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 8 MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (537) IN THE EVENING DECREASING TO LOW
(35) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....87-95 VALLEYS AND 77-87 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MIN HUMIDITY........14-23 PERCENT.
* 24 HR TREND........2 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 8 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (496) IN THE MORNING INCREASING TO
VERY HIGH (904) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-63.
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 35-45 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE SOUTHEAST UP TO 4 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 7 MPH IN THE EVENING SHIFTING
TO THE SOUTHEAST 3 TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (663) IN THE EVENING DECREASING TO LOW
(35) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98 VALLEYS AND 79-89 MOUNTAINS.
* MIN HUMIDITY........13-22 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 9 MPH WITH GUSTS TO AROUND 20 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 7 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 5 TO 10 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 (585) IN THE MORNING INCREASING TO VERY
HIGH (1137) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS
85 TO 95 VALLEYS...76 TO 86 MOUNTAINS. SOUTHWEST WIND UP TO
10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 54 TO 62. HIGHS
81 TO 91 VALLEYS...72 TO 82 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ707-061330-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM FRIDAY AFTERNOON
THROUGH FRIDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-65.
* 24 HR TREND........5 DEGREES WARMER.
* MAX HUMIDITY........35-50 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE NORTH OVERNIGHT.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (367) IN THE EVENING DECREASING TO
LOW (47) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-99.
* 24 HR TREND........2 DEGREES WARMER.
* MIN HUMIDITY........12-18 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.......7500 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 (622) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE AND PATCHY SMOKE THROUGH
THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-67.
* MAX HUMIDITY........40-55 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 7 MPH.
* 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 (599) IN THE EVENING DECREASING TO LOW
(55) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....95-101.
* MIN HUMIDITY........11-17 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 9 MPH WITH GUSTS TO AROUND 20
MPH.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (323) IN THE MORNING INCREASING TO
VERY HIGH (1016) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 57 TO 67. HIGHS
88 TO 98. SOUTHWEST WIND 4 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 57 TO 65. HIGHS
86 TO 93.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ708-061330-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM FRIDAY AFTERNOON
THROUGH FRIDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....53-61.
* 24 HR TREND........5 DEGREES WARMER.
* MAX HUMIDITY........30-40 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE SOUTHEAST 3 TO 4 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 (391) IN THE EVENING DECREASING TO
LOW (33) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-99.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........10-13 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 4 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (483) IN THE MORNING INCREASING TO
VERY HIGH (813) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-63.
* MAX HUMIDITY........35-45 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.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (653) IN THE EVENING DECREASING TO LOW
(46) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-100.
* MIN HUMIDITY........10-13 PERCENT.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 6 TO 10 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (485) IN THE MORNING INCREASING TO
VERY HIGH (1006) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS
88 TO 98. SOUTHWEST WIND UP TO 10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 55 TO 63. HIGHS
84 TO 93.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ709-061330-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........CLEAR. AREAS OF SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-64.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........25-35 PERCENT.
* 24 HR TREND........15 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE SOUTH 3 TO 7 MPH OVERNIGHT.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (354) IN THE EVENING DECREASING TO
LOW (47) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-102.
* 24 HR TREND........5 DEGREES WARMER.
* MIN HUMIDITY........10-14 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTH 3 TO 7 MPH IN THE MORNING SHIFTING TO
THE WEST 3 TO 8 MPH WITH GUSTS TO AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (467) IN THE MORNING INCREASING TO
VERY HIGH (880) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....61-67.
* MAX HUMIDITY........25-35 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 7 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (692) IN THE EVENING DECREASING TO LOW
(73) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-103.
* MIN HUMIDITY........9-13 PERCENT.
* 20-FOOT WINDS.......SOUTH 3 TO 12 MPH IN THE MORNING SHIFTING TO
THE WEST 5 TO 14 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (697) IN THE MORNING INCREASING TO VERY
HIGH (1023) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS IN THE 60S. HIGHS 91 TO 101.
SOUTHWEST WIND 5 TO 15 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 59 TO 65. HIGHS 85 TO
95. SOUTHWEST WIND UP TO 10 MPH.
TUESDAY
CLEAR. LOWS IN THE LOWER TO MID 60S. HIGHS 85 TO 95.
WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 64. HIGHS 83 TO 93.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
WAZ705-706-061330-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF CHELAN, WENATCHEE, WATERVILLE,
AND GRAND COULEE
238 PM PDT WED AUG 5 2026
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZE EARLY IN THE EVENING.
AREAS OF SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-67.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........30-45 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 8 MPH IN THE EVENING SHIFTING
TO THE WEST 3 TO 7 MPH OVERNIGHT.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (574) IN THE EVENING DECREASING TO LOW
(52) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....91-101.
* 24 HR TREND........2 DEGREES WARMER.
* MIN HUMIDITY........11-15 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......NORTHWEST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (159) IN THE MORNING INCREASING TO HIGH
(746) IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....61-69.
* MAX HUMIDITY........30-45 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 8 MPH.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (672) IN THE EVENING DECREASING TO LOW
(60) OVERNIGHT.
FRIDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....93-102.
* MIN HUMIDITY........12-16 PERCENT.
* 20-FOOT WINDS.......WEST 3 TO 11 MPH.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (355) IN THE MORNING INCREASING TO
VERY HIGH (1108) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS 59 TO 69. HIGHS
88 TO 98. WEST WIND 4 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 67. HIGHS
84 TO 94.
.8 TO 14 DAY OUTLOOK FOR AUG 13 - 19 2026
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page