075  
FNUS56 KOTX 101207  
FWFOTX  
 
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO  
NATIONAL WEATHER SERVICE SPOKANE WA  
507 AM PDT SUN MAY 10 2026  
 
   
DISCUSSION
 
 
WARM AND GENERALLY DRY WEATHER THROUGH AT LEAST TUESDAY. DRY AND  
BREEZY WINDS IN CENTRAL WASHINGTON WILL LEAD TO INCREASED RISK OF  
ESCAPED GRASS FIRES TODAY. A CHANCE FOR SHOWERS AND ISOLATED  
THUNDERSTORMS ARRIVES FOR MIDDLE AND LATE WEEK, WITH THE BEST  
CHANCES AROUND THE MOUNTAIN DISTRICTS.  
 
***************************************************************  
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).  
***************************************************************  
 
WAZ696-698-110245-  
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-  
EAST WASHINGTON NORTH CASCADES (ZONE 698)-  
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,  
AND LEAVENWORTH  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....66-76 VALLEYS AND 54-64 MOUNTAINS.  
* 24 HR TREND........2 DEGREES WARMER VALLEYS, AND 4 DEGREES COOLER  
MOUNTAINS.  
* MIN HUMIDITY........25-35 PERCENT VALLEYS AND 30-45 PERCENT  
MOUNTAINS.  
* 24 HR TREND........15 PERCENT WETTER.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...WEST UP TO 7 MPH IN THE MORNING INCREASING  
TO 6 TO 17 MPH WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 10 MPH IN THE MORNING  
INCREASING TO WEST 11 TO 22 MPH WITH GUSTS TO AROUND 45 MPH  
IN THE AFTERNOON.  
* MIXING HEIGHT.......5500 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (400) IN THE MORNING INCREASING TO  
VERY HIGH (995) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....42-51 VALLEYS AND 35-45 MOUNTAINS.  
* 24 HR TREND........7 DEGREES COOLER.  
* MAX HUMIDITY........61-80 PERCENT.  
* 24 HR TREND........10 PERCENT WETTER VALLEYS, AND 30 PERCENT  
WETTER MOUNTAINS.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 12 TO 23 MPH. GUSTS UP TO 45 MPH  
IN THE EVENING DECREASING TO 25 MPH OVERNIGHT.  
* RIDGES/UPR SLOPES....NORTHWEST 12 TO 23 MPH. GUSTS UP TO 45 MPH  
IN THE EVENING DECREASING TO 30 MPH OVERNIGHT.  
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHWEST 15 TO 25 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...HIGH (788) IN THE EVENING DECREASING TO LOW  
(144) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....70-80 VALLEYS AND 57-67 MOUNTAINS.  
* MIN HUMIDITY........25-35 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 9 MPH WITH GUSTS TO AROUND 20  
MPH IN THE MORNING SHIFTING TO THE SOUTHEAST 3 TO 6 MPH IN  
THE AFTERNOON.  
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 14 MPH WITH GUSTS TO AROUND  
25 MPH IN THE MORNING SHIFTING TO THE SOUTH 3 TO 7 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (311) IN THE MORNING INCREASING TO  
HIGH (713) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY...PARTLY CLOUDY. LOWS 46 TO 55 VALLEYS
 
40 TO  
50 MOUNTAINS. HIGHS 76 TO 86 VALLEYS...64 TO 74 MOUNTAINS.  
SOUTHEAST WIND 5 TO 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 46 TO 56. HIGHS 70 TO 80 VALLEYS...58 TO  
68 MOUNTAINS. WEST WIND 10 TO 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN AND HIGH MOUNTAIN  
SNOW SHOWERS. LOWS 45 TO 53 VALLEYS...39 TO 49 MOUNTAINS. HIGHS  
65 TO 75 VALLEYS...55 TO 65 MOUNTAINS. WEST WIND 10 TO 20 MPH.    
FRIDAY...PARTLY CLOUDY. LOWS 42 TO 50 VALLEYS
 
36 TO  
46 MOUNTAINS. HIGHS 60 TO 70 VALLEYS...50 TO 60 MOUNTAINS.    
SATURDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN AND HIGH MOUNTAIN  
SNOW SHOWERS. LOWS 39 TO 48 VALLEYS...33 TO 43 MOUNTAINS. HIGHS  
59 TO 69 VALLEYS...48 TO 58 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ697-110245-  
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL  
RECREATION AREA (ZONE 697)-  
INCLUDING THE CITY OF STEHEKIN  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....63-73 VALLEYS AND 50-60 MOUNTAINS.  
* 24 HR TREND........7 DEGREES COOLER VALLEYS, AND 13 DEGREES  
COOLER MOUNTAINS.  
* MIN HUMIDITY........25-40 PERCENT VALLEYS AND 45-60 PERCENT  
MOUNTAINS.  
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 5 PERCENT WETTER  
MOUNTAINS.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 13 MPH. GUSTS UP TO 30 MPH IN  
THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 9 MPH IN THE MORNING SHIFTING  
TO THE WEST 9 TO 20 MPH WITH GUSTS TO AROUND 35 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......4000 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (237) IN THE MORNING INCREASING TO  
HIGH (716) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....43-51 VALLEYS AND 34-44 MOUNTAINS.  
* 24 HR TREND........2 DEGREES COOLER.  
* MAX HUMIDITY........60-75 PERCENT VALLEYS AND 70-80 PERCENT  
MOUNTAINS.  
* 24 HR TREND........10 PERCENT WETTER VALLEYS, AND 15 PERCENT  
WETTER MOUNTAINS.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 8 TO 19 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* RIDGES/UPR SLOPES....NORTHWEST 8 TO 19 MPH. GUSTS UP TO 35 MPH IN  
THE EVENING DECREASING TO 25 MPH OVERNIGHT.  
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...HIGH (603) IN THE EVENING DECREASING TO LOW  
(80) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....69-79 VALLEYS AND 56-66 MOUNTAINS.  
* MIN HUMIDITY........30-45 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 5 MPH IN THE MORNING SHIFTING  
TO THE SOUTHWEST 3 TO 4 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 8 MPH IN THE MORNING SHIFTING  
TO THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.  
* MIXING HEIGHT.......6000 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (202) IN THE MORNING INCREASING TO  
HIGH (558) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY...PARTLY CLOUDY. LOWS 46 TO 55 VALLEYS
 
38 TO  
48 MOUNTAINS. HIGHS 75 TO 85 VALLEYS...62 TO 72 MOUNTAINS.  
SOUTHEAST WIND UP TO 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 51 TO 59 VALLEYS...42 TO 52 MOUNTAINS. HIGHS  
66 TO 76 VALLEYS...53 TO 63 MOUNTAINS. WEST WIND 10 TO 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN AND HIGH MOUNTAIN  
SNOW SHOWERS. LOWS 44 TO 54 VALLEYS...37 TO 47 MOUNTAINS. HIGHS  
61 TO 71 VALLEYS...51 TO 61 MOUNTAINS. WEST WIND 5 TO 15 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY WITH A CHANCE OF RAIN  
AND HIGH MOUNTAIN SNOW SHOWERS. LOWS 39 TO 49 VALLEYS...34 TO  
44 MOUNTAINS. HIGHS 57 TO 67 VALLEYS...47 TO 57 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ704-110245-  
METHOW VALLEY (ZONE 704)-  
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....71-80.  
* 24 HR TREND........2 DEGREES WARMER.  
* MIN HUMIDITY........19-25 PERCENT.  
* 24 HR TREND........5 PERCENT DRIER.  
* 20-FOOT WINDS.......EAST UP TO 6 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST 5 TO 16 MPH WITH GUSTS TO AROUND 30 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......7000 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (313) IN THE MORNING INCREASING TO  
VERY HIGH (1062) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....41-50.  
* 24 HR TREND........3 DEGREES COOLER.  
* MAX HUMIDITY........61-80 PERCENT.  
* 24 HR TREND........10 PERCENT WETTER.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......NORTHWEST 8 TO 19 MPH WITH GUSTS TO AROUND 35  
MPH IN THE EVENING DECREASING TO 3 TO 9 MPH WITH GUSTS TO AROUND  
20 MPH OVERNIGHT.  
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...VERY HIGH (870) IN THE EVENING DECREASING TO  
LOW (64) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-82.  
* MIN HUMIDITY........14-21 PERCENT.  
* 20-FOOT WINDS.......NORTHWEST 3 TO 7 MPH IN THE MORNING SHIFTING  
TO THE SOUTHEAST 3 TO 6 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 (227) IN THE MORNING INCREASING TO  
HIGH (682) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 79 TO 89.  
SOUTHEAST WIND UP TO 5 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 50 TO 59. HIGHS 75 TO 84. WEST WIND 5 TO  
15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 45 TO 54. HIGHS 70 TO 80. WEST  
WIND 10 TO 20 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS 41 TO 51. HIGHS  
64 TO 74.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ703-110245-  
OKANOGAN VALLEY (ZONE 703)-  
INCLUDING THE CITIES OF CONCONULLY AND OMAK  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-82.  
* 24 HR TREND........1 DEGREE COOLER.  
* MIN HUMIDITY........19-22 PERCENT.  
* 24 HR TREND........4 PERCENT DRIER.  
* 20-FOOT WINDS.......SOUTH 5 TO 16 MPH. GUSTS UP TO 30 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......7000 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (439) IN THE MORNING INCREASING TO  
VERY HIGH (1201) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....46-51.  
* 24 HR TREND........4 DEGREES COOLER.  
* MAX HUMIDITY........55-65 PERCENT.  
* 24 HR TREND........15 PERCENT WETTER.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......NORTHWEST 9 TO 20 MPH. GUSTS UP TO 40 MPH IN  
THE EVENING DECREASING TO 25 MPH OVERNIGHT.  
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...VERY HIGH (1037) IN THE EVENING DECREASING TO  
LOW (64) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-82.  
* MIN HUMIDITY........13-18 PERCENT.  
* 20-FOOT WINDS.......NORTH 3 TO 9 MPH WITH GUSTS TO AROUND 20 MPH.  
* MIXING HEIGHT.......7000 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (424) IN THE MORNING INCREASING TO  
HIGH (684) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 48 TO 54. HIGHS 81 TO 91. EAST  
WIND UP TO 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 55 TO 60. HIGHS 77 TO 86. NORTHWEST WIND 5 TO  
15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 74 TO 83. WEST  
WIND 10 TO 20 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS 45 TO 52. HIGHS  
67 TO 77.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ702-110245-  
COLVILLE RESERVATION (ZONE 702)-  
INCLUDING THE CITIES OF NESPELEM AND KELLER  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....71-81 VALLEYS AND 63-72 MOUNTAINS.  
* 24 HR TREND........2 DEGREES WARMER.  
* MIN HUMIDITY........21-28 PERCENT.  
* 24 HR TREND........4 PERCENT DRIER.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...EAST 3 TO 7 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST 3 TO 10 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTH 3 TO 10 MPH.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (341) IN THE MORNING INCREASING TO  
VERY HIGH (1155) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....44-49.  
* 24 HR TREND........2 DEGREES COOLER.  
* MAX HUMIDITY........50-65 PERCENT.  
* 24 HR TREND........5 PERCENT WETTER.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 5 TO 16 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING DECREASING TO 20 MPH OVERNIGHT.  
* RIDGES/UPR SLOPES....NORTHWEST 5 TO 16 MPH WITH GUSTS TO AROUND  
30 MPH.  
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...VERY HIGH (1104) IN THE EVENING DECREASING TO  
LOW (62) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-82 VALLEYS AND 65-75 MOUNTAINS.  
* MIN HUMIDITY........14-22 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....NORTH 3 TO 11 MPH IN THE MORNING SHIFTING TO  
THE WEST 3 TO 6 MPH IN THE AFTERNOON.  
* MIXING HEIGHT.......8000 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (350) IN THE MORNING INCREASING TO  
HIGH (793) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY...PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 80 TO 90 VALLEYS
 
 
73 TO 82 MOUNTAINS. EAST WIND UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 53 TO 58. HIGHS 75 TO 85 VALLEYS...68 TO  
77 MOUNTAINS. WEST WIND 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 72 TO  
82 VALLEYS...65 TO 74 MOUNTAINS. WEST WIND 5 TO 15 MPH.    
FRIDAY...PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 66 TO 76 VALLEYS
 
 
60 TO 69 MOUNTAINS.    
SATURDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 43 TO  
48. HIGHS 64 TO 74 VALLEYS...58 TO 65 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ699-110245-  
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-  
INCLUDING THE CITIES OF REPUBLIC AND CURLEW  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....71-81 VALLEYS AND 62-71 MOUNTAINS.  
* 24 HR TREND........1 DEGREE COOLER.  
* MIN HUMIDITY........22-29 PERCENT.  
* 24 HR TREND........UNCHANGED.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...SOUTH UP TO 9 MPH. GUSTS UP TO 20 MPH IN THE  
AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTH UP TO 10 MPH.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (460) IN THE MORNING INCREASING TO  
VERY HIGH (1150) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....41-49.  
* 24 HR TREND........UNCHANGED VALLEYS, AND 5 DEGREES COOLER  
MOUNTAINS.  
* MAX HUMIDITY........55-70 PERCENT.  
* 24 HR TREND........UNCHANGED VALLEYS, AND 20 PERCENT WETTER  
MOUNTAINS.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...WEST 3 TO 13 MPH WITH GUSTS TO AROUND 30 MPH  
IN THE EVENING SHIFTING TO THE NORTHWEST 3 TO 8 MPH WITH  
GUSTS TO AROUND 20 MPH OVERNIGHT.  
* RIDGES/UPR SLOPES....NORTHWEST 4 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...VERY HIGH (1143) IN THE EVENING DECREASING TO  
LOW (90) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....73-83 VALLEYS AND 65-73 MOUNTAINS.  
* MIN HUMIDITY........14-21 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 8 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST 3 TO 8 MPH.  
* MIXING HEIGHT.......9000 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (444) IN THE MORNING INCREASING TO  
VERY HIGH (926) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY...PARTLY CLOUDY. LOWS 44 TO 51. HIGHS 81 TO 91 VALLEYS
 
 
72 TO 81 MOUNTAINS. EAST WIND UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 50 TO 57. HIGHS 76 TO 86 VALLEYS...67 TO  
76 MOUNTAINS. WEST WIND UP TO 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 45 TO  
52. HIGHS 72 TO 82 VALLEYS...65 TO 75 MOUNTAINS. WEST WIND 5 TO  
15 MPH.    
FRIDAY...PARTLY CLOUDY. LOWS 42 TO 50. HIGHS 67 TO 77 VALLEYS
 
 
60 TO 69 MOUNTAINS.    
SATURDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 40 TO 47. HIGHS 64 TO 73 VALLEYS...57 TO 66 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ700-701-110245-  
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  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-80 VALLEYS AND 62-72 MOUNTAINS.  
* 24 HR TREND........8 DEGREES WARMER.  
* MIN HUMIDITY........24-30 PERCENT VALLEYS AND 28-40 PERCENT  
MOUNTAINS.  
* 24 HR TREND........1 PERCENT DRIER.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...EAST UP TO 5 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST 3 TO 7 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTH 3 TO 10 MPH.  
* MIXING HEIGHT.......6000 FT AGL.  
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (339) IN THE MORNING INCREASING TO  
HIGH (753) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....42-49.  
* 24 HR TREND........UNCHANGED.  
* MAX HUMIDITY........55-70 PERCENT.  
* 24 HR TREND........UNCHANGED.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...WEST UP TO 9 MPH. GUSTS UP TO 20 MPH IN THE  
EVENING.  
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 11 MPH IN THE EVENING  
SHIFTING TO THE NORTHWEST 3 TO 8 MPH OVERNIGHT.  
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...HIGH (752) IN THE EVENING DECREASING TO LOW  
(52) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-81 VALLEYS AND 63-73 MOUNTAINS.  
* MIN HUMIDITY........17-27 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...WEST UP TO 6 MPH.  
* RIDGES/UPR SLOPES....WEST UP TO 6 MPH.  
* MIXING HEIGHT.......8000 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (423) IN THE MORNING INCREASING TO  
VERY HIGH (865) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY...PARTLY CLOUDY. LOWS 43 TO 51. HIGHS 81 TO 90 VALLEYS
 
 
72 TO 82 MOUNTAINS. NORTHEAST WIND UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 49 TO 57. HIGHS 75 TO 84 VALLEYS...66 TO  
76 MOUNTAINS. SOUTH WIND UP TO 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 46 TO 53. HIGHS 72 TO 80 VALLEYS...64 TO 74 MOUNTAINS.  
SOUTHWEST WIND 5 TO 15 MPH.    
FRIDAY...PARTLY CLOUDY. LOWS 43 TO 50. HIGHS 67 TO 75 VALLEYS
 
 
59 TO 69 MOUNTAINS.    
SATURDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 40 TO  
47. HIGHS 64 TO 71 VALLEYS...55 TO 65 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
IDZ101-110245-  
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-  
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,  
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....72-80 VALLEYS AND 64-74 MOUNTAINS.  
* 24 HR TREND........8 DEGREES WARMER.  
* MIN HUMIDITY........27-35 PERCENT.  
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 10 PERCENT DRIER  
MOUNTAINS.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...SOUTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING  
TO THE SOUTHWEST 3 TO 7 MPH WITH GUSTS TO AROUND 20 MPH IN  
THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTH 3 TO 11 MPH.  
* MIXING HEIGHT.......5000 FT AGL.  
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (405) IN THE MORNING INCREASING TO  
VERY HIGH (821) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....42-50.  
* 24 HR TREND........1 DEGREE 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...SOUTHWEST 3 TO 10 MPH.  
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 11 MPH.  
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (387) IN THE EVENING DECREASING TO  
LOW (80) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....69-77 VALLEYS AND 60-70 MOUNTAINS.  
* MIN HUMIDITY........25-40 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 8 MPH.  
* RIDGES/UPR SLOPES....WEST 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......7000 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...HIGH (527) IN THE MORNING INCREASING TO VERY  
HIGH (884) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
WARMER. PARTLY CLOUDY. LOWS 42 TO 49. HIGHS 80 TO  
89 VALLEYS...71 TO 81 MOUNTAINS. EAST WIND UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 49 TO 56. HIGHS 72 TO 80 VALLEYS...64 TO  
74 MOUNTAINS. SOUTH WIND 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 46 TO 52. HIGHS 68 TO 76 VALLEYS...60 TO 70 MOUNTAINS.  
SOUTHWEST WIND 5 TO 15 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY WITH A CHANCE OF RAIN  
SHOWERS. LOWS 40 TO 50. HIGHS 61 TO 71 VALLEYS...54 TO  
64 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ705-706-110245-  
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-  
WATERVILLE PLATEAU (ZONE 706)-  
INCLUDING THE CITIES OF CHELAN, WENATCHEE, WATERVILLE,  
AND GRAND COULEE  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....73-83.  
* 24 HR TREND........5 DEGREES WARMER.  
* MIN HUMIDITY........20-27 PERCENT.  
* 24 HR TREND........1 PERCENT WETTER.  
* 20-FOOT WINDS.......SOUTHEAST 3 TO 7 MPH IN THE MORNING SHIFTING  
TO THE SOUTHWEST 8 TO 19 MPH WITH GUSTS TO AROUND 35 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (278) IN THE MORNING INCREASING TO  
VERY HIGH (1152) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY BLOWING DUST IN THE  
EVENING.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....45-51.  
* 24 HR TREND........4 DEGREES COOLER.  
* MAX HUMIDITY........60-75 PERCENT.  
* 24 HR TREND........15 PERCENT WETTER.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......WEST 9 TO 24 MPH. GUSTS UP TO 40 MPH IN THE  
EVENING DECREASING TO 30 MPH OVERNIGHT.  
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHWEST 15 TO 30 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...VERY HIGH (979) IN THE EVENING DECREASING TO  
LOW (91) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....73-83.  
* MIN HUMIDITY........14-22 PERCENT.  
* 20-FOOT WINDS.......NORTHWEST 3 TO 9 MPH IN THE MORNING SHIFTING  
TO THE SOUTHEAST 3 TO 6 MPH IN THE AFTERNOON.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (328) IN THE MORNING INCREASING TO  
MODERATE (498) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 48 TO 54. HIGHS 81 TO 91.  
NORTHEAST WIND UP TO 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 54 TO  
59. HIGHS 76 TO 86. WEST WIND 10 TO 20 MPH.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 72 TO 81.  
WEST WIND 15 TO 25 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS 44 TO 51. HIGHS  
66 TO 76.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ707-708-110245-  
WESTERN COLUMBIA BASIN (ZONE 707)-EASTERN COLUMBIA BASIN -  
PALOUSE - SPOKANE AREA (ZONE 708)-  
INCLUDING THE CITIES OF MOSES LAKE, EPHRATA, SPOKANE, PULLMAN,  
RITZVILLE, WILBUR, AND CHENEY  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....77-83.  
* 24 HR TREND........5 DEGREES WARMER.  
* MIN HUMIDITY........23-29 PERCENT.  
* 24 HR TREND........10 PERCENT DRIER.  
* 20-FOOT WINDS.......EAST 3 TO 8 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST 3 TO 14 MPH WITH GUSTS TO AROUND 25 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......6000 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (227) IN THE MORNING INCREASING TO  
VERY HIGH (1039) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....46-51.  
* 24 HR TREND........2 DEGREES COOLER.  
* MAX HUMIDITY........60-75 PERCENT.  
* 24 HR TREND........5 PERCENT WETTER.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......WEST 8 TO 19 MPH WITH GUSTS TO AROUND 35 MPH.  
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...VERY HIGH (884) IN THE EVENING DECREASING TO  
LOW (77) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....74-80.  
* MIN HUMIDITY........17-27 PERCENT.  
* 20-FOOT WINDS.......WEST 3 TO 6 MPH.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (256) IN THE MORNING INCREASING TO  
MODERATE (475) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
WARMER. PARTLY CLOUDY. LOWS 46 TO 53. HIGHS 86 TO 91.  
NORTHEAST WIND UP TO 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. LOWS 53 TO 59. HIGHS 78 TO 85.  
SOUTHWEST WIND 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER TO MID 50S. HIGHS  
75 TO 81. SOUTHWEST WIND 10 TO 20 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS 44 TO 50. HIGHS  
67 TO 76.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ709-110245-  
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-  
INCLUDING THE CITY OF POMEROY  
507 AM PDT SUN MAY 10 2026  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....75-84.  
* 24 HR TREND........7 DEGREES WARMER.  
* MIN HUMIDITY........27-35 PERCENT.  
* 24 HR TREND........UNCHANGED.  
* 20-FOOT WINDS.......SOUTHEAST 3 TO 10 MPH IN THE MORNING SHIFTING  
TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN THE  
AFTERNOON.  
* MIXING HEIGHT.......4500 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (210) IN THE MORNING INCREASING TO  
HIGH (678) IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MIN TEMPERATURE.....48-52.  
* 24 HR TREND........2 DEGREES WARMER.  
* MAX HUMIDITY........55-70 PERCENT.  
* 24 HR TREND........UNCHANGED.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......SOUTHWEST 6 TO 17 MPH WITH GUSTS TO AROUND 35  
MPH.  
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (427) IN THE EVENING DECREASING TO  
LOW (82) OVERNIGHT.  
   
MONDAY
 
 
* SKY/WEATHER.........SUNNY.  
* CHANCE OF LIGHTNING...0 PERCENT.  
* MAX TEMPERATURE.....71-80.  
* MIN HUMIDITY........25-35 PERCENT.  
* 20-FOOT WINDS.......WEST 3 TO 8 MPH IN THE MORNING SHIFTING TO  
THE NORTH 3 TO 9 MPH IN THE AFTERNOON.  
* MIXING HEIGHT.......4500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
* VENTILATION INDEX...MODERATE (327) IN THE MORNING INCREASING TO  
MODERATE (381) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
WARMER. PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 84 TO 93.  
EAST WIND UP TO 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 55 TO 61. HIGHS 75 TO 84. SOUTHWEST WIND  
10 TO 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS IN THE  
LOWER TO MID 50S. HIGHS 72 TO 81. SOUTHWEST WIND 5 TO 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS NEAR 50.  
HIGHS 66 TO 75.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 40S. HIGHS  
64 TO 74.  
 
.8 TO 14 DAY OUTLOOK FOR MAY 17 - 23 2026  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WA Page
The Nexlab ID Page Main Text Page