469
FNUS76 KPDT 291943
FWSPDT
SPOT FORECAST FOR DMR 4/25...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
1243 PM PDT WED APR 29 2026
FORECAST IS BASED ON IGNITION TIME OF 0000 PDT ON APRIL 30.
***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 TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.
CATEGORIES ARE A GENERALIZED INDICATOR ONLY:
LOW (< 200), MODERATE (200-500), HIGH (500-700),
AND VERY HIGH (> 700). ***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
DRY AND WARMER CONDITIONS WILL PERSIST OVER THE
FIRE AREA THROUGH THE PERIOD. OVERNIGHT RHS WILL BE IN THE 30%
WITH DAYTIME RHS IN THE MID TO UPPER TEENS THURSDAY WITH
OVERNIGHT RECOVERIES INTO THURSDAY BEING IN THE 60%. WINDS
WILL BE BELOW 10 MPH AND MAINLY FROM THE EAST. INVERSION WILL
SETTLE IN AROUND 2000 AND LIFT AGAIN TO NEAR 8000 FT AGL BETWEEN
0800 TO 1100.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....32-35.
MAX HUMIDITY........80-85 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......NORTHEAST WINDS 4 TO 6 MPH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....EAST 7 TO 9 MPH.
VENTILATION INDEX...LOW (50).
TIME (PDT) MIDNGT 2 AM 4 AM 6 AM 8 AM 10 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............41 37 34 33 40 55
RH..............66 76 83 86 71 45
20 FT WIND......NE 4 E 3 E 3 E 3 NE 4 NE 4
20 FT WIND GUST.8 5 5 6 10 10
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 7 MPH AFTER 11
AM.
RIDGETOP WIND.......NORTHEAST WINDS 4 TO 6 MPH BECOMING EAST 7 TO
9 MPH AFTER 11 AM.
MIXING HEIGHT.......7900 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 10 MPH.
VENTILATION INDEX...LOW (120) INCREASING TO MODERATE (430) IN THE
AFTERNOON.
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....36-39.
MAX HUMIDITY........62-67 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 7 MPH AFTER 4 PM
BECOMING LIGHT OVERNIGHT.
RIDGETOP WIND.......NORTHEAST WINDS 5 TO 7 MPH AFTER 4 PM
BECOMING 3 TO 5 MPH OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....EAST 7 TO 9 MPH SHIFTING TO THE SOUTHEAST
AROUND 8 MPH EARLY IN THE MORNING.
VENTILATION INDEX...MODERATE (330) DECREASING TO LOW (30)
OVERNIGHT.
FORECASTER...BENNESE
REQUESTED BY...PATRICK ODELL
TYPE OF REQUEST...PRESCRIBED
.TAG 2612139.0/PDT
.DELDT 04/29/26
.FORMATTERVERSION 2.0.0
.EMAIL PATRICK.ODELL@USDA.GOV,KARL_CLOSE@USDA.GOV,MICHAEL.VELASCO@USDA.GOV,MAX.LEIDENFROST@USDA.GOV
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