607
FNUS76 KOTX 071852
FWSOTX
SPOT FORECAST FOR ELDERBERRY...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
1152 AM PDT THU MAY 7 2026
FORECAST IS BASED ON IGNITION TIME OF 1100 PDT ON MAY 07.
DISCUSSION
DRY CONDITIONS WILL OCCUR TODAY WITH AFTERNOON RELATIVE HUMIDITY
FALLING INTO THE 20S. EARLY EVENING HOURS WILL HAVE BREEZY
CONDITIONS. WINDS WILL RAMP UP FRIDAY AFTERNOON AND EVENING AS
ANOTHER WEAK WEATHER SYSTEM PASSES THROUGH WITH NORTHWEST WINDS
GUSTING UP TO 35 MPH. CLOUDS WILL INCREASE WITH THE INCOMING
SYSTEM ON FRIDAY.
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.........SUNNY IN THE LATE MORNING BECOMING PARTLY
CLOUDY IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....68 (TOP OF UNIT) TO 75 (BOTTOM OF UNIT).
MIN HUMIDITY........24 TO 29 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 12 MPH ON RIDGETOPS
AND 3 TO 6 MPH ON MIDSLOPES.
MIXING HEIGHT.......6000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
VENTILATION INDEX...MODERATE (371).
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....50.
MAX HUMIDITY........52 TO 57 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 14 MPH ON RIDGETOPS
AND 5 TO 9 MPH ON MIDSLOPES IN THE EVENING.
WINDS DECREASE TO 7 TO 11 MPH ON RIDGETOPS
AND 3 TO 6 MPH ON MIDSLOPES AFTER MIDNIGHT.
MIXING HEIGHT.......FALLING TO 500 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 11 TO 16 MPH.
VENTILATION INDEX...MODERATE (354) DECREASING TO LOW (38)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY IN THE MORNING BECOMING PARTLY
CLOUDY IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....66 (TOP OF UNIT) TO 73 (BOTTOM OF UNIT).
MIN HUMIDITY........20 TO 25 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 17 TO 23 MPH ON RIDGETOPS AND
10 TO 14 MPH ON MIDSLOPES. GUSTS UP TO 35 MPH
IN THE AFTERNOON AND EVENING.
MIXING HEIGHT.......INCREASING TO 5500 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 29 TO 35 MPH.
VENTILATION INDEX...MODERATE (408) INCREASING TO VERY HIGH (921) IN
THE AFTERNOON.
FORECASTER...RFKS
REQUESTED BY...BRIAN CAMPBELL
TYPE OF REQUEST...PRESCRIBED
.TAG 2613082.0/OTX
.DELDT 05/07/26
.FORMATTERVERSION 2.0.0
.EMAIL BRIAN.D.CAMPBELL@USDA.GOV
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