318
FNUS76 KPDT 300217
FWSPDT
SPOT FORECAST FOR ANTHONY FIRE...WALLOWA-WHITMAN NATIONAL FOREST
NATIONAL WEATHER SERVICE PENDLETON OR
717 PM PDT SAT AUG 29 2026
FORECAST IS BASED ON FORECAST START TIME OF 2000 PDT ON AUGUST 29.
***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 WEATHER IS EXPECTED THROUGH MONDAY.
MIN RH VALUES WILL BE 20 TO 25 PERCENT ON SUNDAY AND AROUND
15 PERCENT ON MONDAY, WITH EXCELLENT RECOVERY TONIGHT AND MODERATE
RECOVERY SUNDAY NIGHT.
WINDS WILL MAINLY BE FROM THE WEST TONIGHT AND SUNDAY, THEN SHIFTING
TO MORE OF A SOUTHERLY DIRECTION SUNDAY NIGHT AND MONDAY. WINDS WILL
GUST 15 TO 20 MPH, THIS EVENING, THEN WILL GENERALLY BE 10 MPH OR LESS.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....30-33.
MAX HUMIDITY........80-85 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 12 MPH. GUSTS 15 TO 20 MPH IN THE EVENING.
RIDGETOP WIND.......NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO 25 MPH IN THE
EVENING, DECREASING TO 5 TO 10 MPH BY DAYBREAK.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 14 MPH.
VENTILATION INDEX...MODERATE (380) DECREASING TO LOW (50)
OVERNIGHT.
TIME (PDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............40 38 36 36 34 33 33 32 32 31 31 30
RH..............59 68 75 79 81 85 85 85 85 85 75 69
20 FT WIND DIR..NW W W W W W W W W W W W
20 FT WIND SPD..12 12 12 12 11 10 8 8 8 7 7 6
20 FT WIND GUST.17 17 16 14 13 11 10
SUNDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT) THEN BECOMING PARTLY
SUNNY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....61-64.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH EARLY IN THE MORNING
BECOMING LIGHT.
RIDGETOP WIND.......WEST WINDS 5 TO 10 MPH, SHIFTING TO THE EAST
IN THE AFTERNOON.
MIXING HEIGHT.......5600 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 9 MPH.
VENTILATION INDEX...LOW (80) INCREASING TO MODERATE (340) IN THE
AFTERNOON.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT). PATCHY SMOKE LATE
IN THE EVENING.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........46-51 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH LATE
IN THE EVENING.
RIDGETOP WIND.......SOUTH WINDS 5 TO 10 MPH.
MIXING HEIGHT.......3500 FT AGL EARLY IN THE EVENING THEN 500 FT
AGL LATE IN THE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 5 TO 7 MPH SHIFTING TO THE SOUTH 6 TO
7 MPH LATE IN THE EVENING.
VENTILATION INDEX...LOW (100) DECREASING TO LOW (30) OVERNIGHT.
MONDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH SHIFTING TO THE
SOUTHEAST LATE IN THE MORNING.
RIDGETOP WIND.......SOUTHEAST WINDS AROUND 10 MPH.
MIXING HEIGHT.......8400 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 15 MPH.
VENTILATION INDEX...LOW (30) INCREASING TO HIGH (650) IN THE
AFTERNOON.
FORECASTER...NIERENBERG
REQUESTED BY...ANDREW LIVINGSTON
TYPE OF REQUEST...WILDFIRE
.TAG 2620560.4/PDT
.DELDT 08/29/26
.FORMATTERVERSION 2.0.0
.EMAIL ANDREW.LIVINGSTON@USDA.GOV
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