778
FNUS76 KOTX 221917
FWSOTX
SPOT FORECAST FOR TOLO FIRE...NPS
NATIONAL WEATHER SERVICE SPOKANE WA
1217 PM PDT SAT AUG 22 2026
FORECAST IS BASED ON FORECAST START TIME OF 1200 PDT ON AUGUST 22.
..RED FLAG WARNING FOR THUNDERSTORMS IN EFFECT UNTIL MIDNIGHT
DISCUSSION
DYNAMIC WEATHER DAY WITH SHIFTING WINDS AND CHANCES FOR
THUNDERSTORMS. THE AREA IS CURRENTLY IN A BREAK OF SHOWERS BUT THE
THREAT WILL INCREASE AGAIN THIS AFTERNOON BETWEEN 1300-2000. A
FEW STORMS COULD BE STRONG WITH ERRATIC OUTFLOW WINDS TO 50 MPH
AND BRIEF DOWNPOURS. GENERAL WINDS WILL BE OUT OF THE WEST-
NORTHWEST AND WILL INCREASE THIS EVENING, WITH THE STRONGEST WINDS
EXPECTED ON RIDGELINES. EAST ASPECTS WILL BE SHELTERED WITH
LIGHTER WEST-NORTHWEST WINDS LESS THAN 10 MPH. BREEZY WEST-
NORTHWEST WINDS WILL PERSIST ON RIDGELINES OVERNIGHT INTO SUNDAY
WITH COOLER TEMPERATURES AND HIGHER HUMIDITY.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
***************************************************************
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).
***************************************************************
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY. 60% CHANCE OF SHOWERS
AND 40% CHANCE OF THUNDERSTORMS.
CWR.................10 PERCENT.
CHANCE OF LIGHTNING.40 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........SOUTHEAST 2 TO 5 MPH SHIFTING TO WEST-NORTHWEST
3 TO 6 MPH AROUND 1500 HOURS. RIDGELINE WINDS WEST
7 TO 12 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...MODERATE (203).
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. 50% CHANCE OF SHOWERS AND
30% CHANCE THUNDERSTORMS UNTIL 2000 HOURS.
CWR.................20 PERCENT.
CHANCE OF LIGHTNING.30 PERCENT UNTIL 2000 HOURS.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........90-95 PERCENT.
WIND (20 FT)........WEST-NORTHWEST 2 TO 5 MPH ON SHELTERED ASPECTS.
WEST 7 TO 12 MPH ON RIDGELINES. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 16 MPH.
VENTILATION INDEX...LOW (184).
SUNDAY
SKY/WEATHER.........PARTLY SUNNY. 20% CHANCE OF RAIN SHOWERS
IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........70-75 PERCENT.
WIND (20 FT)........WEST-NORTHWEST 2 TO 5 MPH ON SHELTERED ASPECTS.
WEST 8 TO 14 MPH ON RIDGELINES.
MIXING HEIGHT.......3000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 12 TO 15 MPH.
VENTILATION INDEX...MODERATE (332).
FORECASTER...VT
REQUESTED BY...LUCAS BONANNO
TYPE OF REQUEST...WILDFIRE
.TAG 2620244.0/OTX
.DELDT 08/22/26
.FORMATTERVERSION 2.0.0
.EMAIL WAPSC@FIRENET.GOV
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