396
FNUS76 KPDT 090859
FWSPDT
SPOT FORECAST FOR DEEP CREEK...BLM, COIDC
NATIONAL WEATHER SERVICE PENDLETON OR
159 AM PDT TUE SEP 9 2025
FORECAST IS BASED ON FORECAST START TIME OF 0900 PDT ON SEPTEMBER 09.
***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10-MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***VENTILATION INDEX IS DERIVED FROM THE
TRANSPORT WIND MULTIPLIED BY THE MIXING
HEIGHT IN 100'S OF FEET. INDEX CATEGORIES
ARE A GENERALIZED INDICATOR ONLY.***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
A SLOWLY APPROACHING WEATHER SYSTEM WILL BRING
ANOTHER ROUND OF AFTERNOON AND EARLY EVENING SHOWERS AND
THUNDERSTORMS TODAY AND WEDNESDAY. STORMS COULD PRODUCE GUSTY
WINDS, SMALL HAIL, AND BRIEF DOWNPOURS. ALTHOUGH LOCALLY WETTING
RAINS ARE POSSIBLE, OVERALL CWRS REMAIN GENERALLY LOW. MOISTURE
FROM THIS SYSTEM WILL FOSTER BOTH GOOD RH RECOVERIES OVERNIGHT
AND MINIMUM RHS AROUND 45 PERCENT. LIGHT WINDS WILL CONTINUE
EACH MORNING AND EACH OVERNIGHT, NORTHERLY DURING THE AFTERNOON
AND EVENING.
TODAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE MORNING, THEN RAIN SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CWR.................9 PERCENT.
CHANCE OF LIGHTNING.27 PERCENT.
MAX TEMPERATURE.....76-79.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE
NORTHWEST LATE IN THE MORNING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE MORNING.
RIDGETOP WIND.......NORTHWEST AROUND 5 MPH.
MIXING HEIGHT.......5300 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST AROUND 6 MPH SHIFTING TO THE
NORTHWEST 6 TO 8 MPH LATE IN THE MORNING.
VENTILATION INDEX...POOR (50) INCREASING TO FAIR (230) IN THE
AFTERNOON.
TIME (PDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
CHC OF LTNG (%).10 10 20 20 20 30 30 30 20 20 20 10
TEMP............63 66 67 70 72 74 74 75 74 73 70 66
RH..............66 63 58 54 50 45 44 43 46 49 54 62
20 FT WIND DIR..SW SW NW NW NW NW NW NW NW NW NW W
20 FT WIND SPD..7 7 7 7 7 7 7 7 7 7 7 6
20 FT WIND GUST.8 8 10 10 10 11 11 11 11 11 11
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING. CHANCE OF
RAIN SHOWERS IN THE EVENING.
CWR.................7 PERCENT.
CHANCE OF LIGHTNING.17 PERCENT.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........69-74 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE
SOUTHWEST OVERNIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING.
RIDGETOP WIND.......NORTHWEST AROUND 6 MPH.
MIXING HEIGHT.......500 FT AGL IN THE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 8 MPH SHIFTING TO THE
SOUTHWEST 6 TO 7 MPH EARLY IN THE EVENING.
VENTILATION INDEX...POOR (120) DECREASING TO POOR (40) OVERNIGHT.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). CHANCE OF RAIN
SHOWERS LATE IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON, THEN
CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
CWR.................1 PERCENT INCREASING TO 18 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF LIGHTNING.28 PERCENT.
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE
NORTHWEST LATE IN THE MORNING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE AFTERNOON.
RIDGETOP WIND.......NORTHWEST AROUND 5 MPH SHIFTING TO THE NORTH
6 TO 9 MPH IN THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST 6 TO 7 MPH SHIFTING TO THE NORTHWEST
5 TO 9 MPH LATE IN THE MORNING.
VENTILATION INDEX...POOR (50) INCREASING TO POOR (190) IN THE
AFTERNOON.
FORECASTER...NWS SEATTLE
REQUESTED BY...JOE WINCKLER
TYPE OF REQUEST...WILDFIRE
.TAG 2521595.0/PDT
.DELDT 09/09/25
.FORMATTERVERSION 2.0.0
.EMAIL JOSEPH.WINCKLER@BIA.GOV,MATTHEW.NUNNELLY@ALASKA.GOV
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