809
FNUS76 KPDT 081024
FWSPDT
SPOT FORECAST FOR HEJ 9...USDA
NATIONAL WEATHER SERVICE PENDLETON OR
324 AM PDT WED OCT 8 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON OCTOBER 08.
***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
DRY CONDITIONS WILL PREVAIL OVER THE FIRE AREA TODAY
WITH GENERALLY WEST WINDS UNDER 10 MPH AFTER . DAYTIME RHS WILL BE
IN THE LOW TO MID 20% TODAY WITH MODERATE (MID TO UPPER 70%) OVERNIGHT
RECOVERIES. THURSDAY WILL BEGIN WITH SE WINDS BELOW 10 MPH SHIFTING
TO THE SW AFTER THE INVERSION BREAKS AFTER 1030AM WITH A SLIGHT CHANCE
OF SHOWERS (25-30%)THROUGH THE AFTERNOON WITH LITTLE TO NO ACCUMULATIONS.
DAYTIME RHS WILL BE IN THE UPPER 30% TO LOW 40%.
REST OF TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....64-67.
MIN HUMIDITY........24-29 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH SHIFTING TO THE
SOUTH THEN SOUTHWEST AFTER 11 AM, THEN SHIFTING TO
THE NORTHWEST 5 TO 6 MPH AFTER 5 PM.
RIDGETOP WIND.......SOUTHEAST WINDS 6 TO 9 MPH SHIFTING TO THE
SOUTH THEN SOUTHWEST AFTER 11 AM, THEN SHIFTING TO
THE NORTHWEST 6 TO 7 MPH AFTER 5 PM.
MIXING HEIGHT.......8100 FT AGL.
TRANSPORT WINDS.....SOUTH 14 TO 22 MPH SHIFTING TO THE SOUTHWEST
AROUND 25 MPH LATE IN THE AFTERNOON, THEN
DECREASING TO AROUND 13 MPH LATE IN THE
AFTERNOON.
VENTILATION INDEX...POOR (50) INCREASING TO EXCELLENT (1050) IN THE
AFTERNOON.
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............40 45 51 55 60 62 62 64 62 62 59 54
RH..............59 52 46 39 35 31 29 27 27 29 34 41
20 FT WIND DIR..SE SE SE SW SW SW SW SW SW NW NW NW
20 FT WIND SPD..8 8 8 8 8 8 8 8 8 6 6 6
20 FT WIND GUST.12 12 12 14 14 14 14 14 14 14 14 14
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS LATE IN THE EVENING.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MIN TEMPERATURE.....41-44.
MAX HUMIDITY........74-79 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 7 MPH AROUND 4 PM BECOMING
LIGHT AFTER 4 PM, THEN BECOMING SOUTHEAST 5 TO 7
MPH AFTER 8 PM.
RIDGETOP WIND.......NORTHWEST WINDS 6 TO 8 MPH AROUND 4 PM BECOMING
LIGHT AFTER 4 PM, THEN BECOMING SOUTHEAST 6 TO 8
MPH AFTER 8 PM.
MIXING HEIGHT.......4100 FT AGL EARLY IN THE EVENING.
TRANSPORT WINDS.....SOUTHWEST 5 TO 13 MPH SHIFTING TO THE SOUTH 7
TO 9 MPH LATE IN THE EVENING.
VENTILATION INDEX...POOR (170) DECREASING TO POOR (30) OVERNIGHT.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE MORNING, THEN CHANCE
OF RAIN SHOWERS EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MAX TEMPERATURE.....60-63.
MIN HUMIDITY........39-44 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH SHIFTING TO THE
SOUTH 5 TO 8 MPH AFTER 11 AM.
RIDGETOP WIND.......SOUTHEAST WINDS 6 TO 8 MPH SHIFTING TO THE
SOUTH 6 TO 9 MPH AFTER 11 AM.
MIXING HEIGHT.......5900 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTH AROUND 9 MPH INCREASING TO 20 TO 26 MPH
LATE IN THE MORNING.
VENTILATION INDEX...POOR (30) INCREASING TO EXCELLENT (950) IN THE
AFTERNOON.
FORECASTER...BENNESE
REQUESTED BY...JACOB ROCCO
TYPE OF REQUEST...PRESCRIBED
.TAG 2523132.0/PDT
.DELDT 10/08/25
.FORMATTERVERSION 2.0.0
.EMAIL JONATHAN.YOUNG@USDA.GOV.,SAMUEL.PEARCY@USDA.GOV,JACOB.ROCCO@USDA.GOV
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