718
FNUS76 KOTX 161639
FWSOTX
SPOT FORECAST FOR FRENCHMAN HILLS...CWICC
NATIONAL WEATHER SERVICE SPOKANE WA
939 AM PDT SAT MAY 16 2026
FORECAST IS BASED ON FORECAST START TIME OF 1700 PDT ON MAY 16.
DISCUSSION
AN UNSTABLE ATMOSPHERE WILL BE OVER THE FIRE AREA TODAY WITH A
20 PERCENT CHANCE OF SHOWERS THROUGH THIS EVENING AND A 5-10
PERCENT CHANCE OF A THUNDERSTORM OVER THE FIRE AREA. GUSTY
WINDS ARE EXPECTED TO CONTINUE INTO SUNDAY, SHIFTING FROM
WEST TODAY, TO NORTHWEST TONIGHT, AND THEN NORTHEAST BY
LATE SUNDAY MORNING. GUSTY OUTFLOW WINDS WILL OCCUR NEAR
SHOWERS AND THUNDERSTORMS THROUGH THIS EVENING WITH BRIEF GUSTS
TO 35 MPH POSSIBLE.
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).
***************************************************************
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING WITH A 20 PERCENT
CHANCE OF RAIN SHOWERS, THEN MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MIN TEMPERATURE.....AROUND 38.
MAX HUMIDITY........67 PERCENT.
WIND (20 FT)........WEST WINDS 9 TO 14 MPH WITH GUSTS TO
AROUND 25 MPH. GUSTY AND ERRATIC WINDS NEAR
SHOWERS.
MIXING HEIGHT.......6000 FT AGL FALLING TO 500 FT AGL NEAR 2000.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
VENTILATION INDEX...VERY HIGH (1090) DECREASING TO LOW (59)
NEAR 2000.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 12 MPH THROUGH 1000 PDT THEN
SHIFTING TO THE NORTHEAST 5 TO 10 MPH. GUSTS UP TO
20 MPH THROUGH THE DAY.
MIXING HEIGHT.......500 FT AGL THROUGH 0800 INCREASING TO 8000 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
VENTILATION INDEX...LOW (60) THROUGH 0800 INCREASING TO VERY HIGH
(1063) IN THE AFTERNOON.
FORECASTER...JW
REQUESTED BY...MCKINSEY CUMMINGS
TYPE OF REQUEST...WILDFIRE
.TAG 2613771.1/OTX
.DELDT 05/16/26
.FORMATTERVERSION 2.0.0
.EMAIL WACWC@FIRENET.GOV,JAVIER_A_MATTSON@FWS.GOV
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