973
FNUS76 KPDT 060001
FWSPDT
SPOT FORECAST FOR AKAWA BUTTE FIRE...ODF
NATIONAL WEATHER SERVICE PENDLETON OR
501 PM PDT WED AUG 5 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON AUGUST 06.
***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
ANOTHER HOT DAY WITH TEMPERATURES CLIMBING INTO THE LOW 90S THURSDAY
DRIVING RELATIVE HUMIDITY TO AROUND 10 PERCENT BY 2 PM. LIGHT WINDS
WILL INCREASE OUT OF THE WEST IN THE MID AFTERNOON TO 8-12 MPH WITH
GUSTS OF 15-18 MPH. HOT AND DRY CONDITIONS WILL LEAD TO UNSTABLE LAPSE
RATES IN THE AFTERNOON. NO THUNDERSTORMS ARE ANTICIPATED.
THURSDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF SMOKE IN THE
MORNING AND EARLY AFTERNOON, THEN PATCHY SMOKE
LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....93-96.
MIN HUMIDITY........8-13 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 10 MPH WITH
GUSTS TO AROUND 18 MPH LATE IN THE AFTERNOON.
RIDGETOP WIND.......
MIXING HEIGHT.......7500 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH SHIFTING TO THE WEST 16
TO 18 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (30-40) INCREASING TO VERY HIGH (750-810)
IN THE AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............54 56 62 69 78 84 89 92 93 94 93 93
RH..............52 51 44 31 22 18 15 13 12 12 13 14
20 FT WIND DIR..W W W SE SE SE SE W W W W W
20 FT WIND SPD..4 3 4 3 3 4 4 4 5 7 10 10
20 FT WIND GUST.5 5 6 5 6 7 8 8 12 16 18 18
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....54-57.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 18
MPH BECOMING LIGHT.
RIDGETOP WIND.......WEST WINDS 6 TO 12 MPH WITH GUSTS TO AROUND 18
MPH BECOMING LIGHT.
MIXING HEIGHT.......700 FT AGL IN THE EVENING THEN 500 FT AGL
OVERNIGHT.
TRANSPORT WINDS.....WEST 12 TO 18 MPH DECREASING TO 6 TO 7 MPH LATE
IN THE EVENING.
VENTILATION INDEX...MODERATE (320-340) DECREASING TO LOW (30)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....92-96.
MIN HUMIDITY........8-13 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH EARLY
IN THE MORNING, THEN BECOMING NORTHWEST UP TO 10 MPH WITH
GUSTS TO AROUND 15 MPH LATE IN THE AFTERNOON.
RIDGETOP WIND.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH EARLY
IN THE MORNING, THEN BECOMING NORTHWEST 5 TO 10 MPH WITH
GUSTS TO AROUND 17 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......7400 FT AGL.
TRANSPORT WINDS.....WEST 6 TO 14 MPH.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (410-440) IN
THE AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...DAVE ISACKSON
TYPE OF REQUEST...WILDFIRE
.TAG 2618970.1/PDT
.DELDT 08/05/26
.FORMATTERVERSION 2.0.0
.EMAIL DAVID_ISACKSON@FIRENET.GOV
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