264
FNUS76 KPDT 270219
FWSPDT
SPOT FORECAST FOR ANTHONY FIRE...WALLOWA-WHITMAN NATIONAL FOREST
NATIONAL WEATHER SERVICE PENDLETON OR
719 PM PDT WED AUG 26 2026
FORECAST IS BASED ON FORECAST START TIME OF 1959 PDT ON AUGUST 26.
***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
WESTERLY WINDS FOR THE OVERNIGHT WILL PREVAIL WITH UP TO 15 MPH
ON THE RIDGETOPS. WINDS THEN BECOME LIGHT BY PREDAWN THURSDAY AND
SOUTHERLY TO SOUTHWESTERLY THROUGH THE MORNING INTO THE EARLY AFTERNOON.
WESTERLY WINDS WILL REDEVELOP BY AROUND 2 TO 3 PM THURSDAY. OVERNIGHT RH
VALUES AS HIGH AS 50 PERCENT WILL FALL TO AROUND 20 PERCENT
THURSDAY AFTERNOON.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 7 MPH.
RIDGETOP WIND.......SOUTHWEST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......6900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 14 MPH.
VENTILATION INDEX...MODERATE (280).
TIME (PDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............67 57 55 54 53 52 51 51 50 50 49 49
RH..............32 42 48 50 52 52 54 55 55 55 55 52
20 FT WIND DIR..W W W W W W W SW SW SW S SW
20 FT WIND SPD..5 7 6 6 5 6 5 5 5 5 5 5
20 FT WIND GUST.6 7 6
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE WEST
EARLY IN THE EVENING, THEN SHIFTING TO THE
SOUTHWEST 5 TO 7 MPH OVERNIGHT.
RIDGETOP WIND.......SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE WEST
EARLY IN THE EVENING, THEN SHIFTING TO THE
SOUTHWEST 6 TO 9 MPH OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 14 MPH SHIFTING TO THE
NORTHWEST AROUND 8 MPH EARLY IN THE EVENING,
THEN BECOMING LIGHT OVERNIGHT BECOMING WEST
AROUND 5 MPH EARLY IN THE MORNING.
VENTILATION INDEX...MODERATE (280) DECREASING TO LOW (30)
OVERNIGHT.
THURSDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT) THEN BECOMING MOSTLY
SUNNY (25-35 PERCENT). PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 7 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHWEST 5 TO 8
MPH LATE IN THE AFTERNOON SHIFTING TO THE
NORTHWEST.
RIDGETOP WIND.......SOUTHWEST WINDS 8 TO 12 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHWEST 11 TO 17
MPH LATE IN THE AFTERNOON SHIFTING TO THE
NORTHWEST.
MIXING HEIGHT.......8600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 13 MPH INCREASING TO 12 TO 15
MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (50) INCREASING TO VERY HIGH (860) IN THE
AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...ANDREW LIVINGSTON
TYPE OF REQUEST...WILDFIRE
.TAG 2620560.1/PDT
.DELDT 08/26/26
.FORMATTERVERSION 2.0.0
.EMAIL ANDREW.LIVINGSTON@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page