769
FNUS76 KPDT 251237
FWSPDT
SPOT FORECAST FOR COFMS GUARD SCHOOL 2026...USDA-FS
NATIONAL WEATHER SERVICE PENDLETON OR
537 AM PDT THU JUN 25 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON JUNE 25.
***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
BREEZY WINDS AND LOW RELATIVE HUMIDITY THIS AFTERNOON WILL LEAD TO
ELEVATED FIRE WEATHER CONCERNS. RELATIVE HUMIDITY AROUND 20%
THIS AFTERNOON WILL RECOVER TO AROUND 90% TONIGHT AS SHOWERS
OVERSPREAD THE CASCADES CREST AND EASTERN SLOPES.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (80-90 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE WEST 5 TO
10 MPH WITH GUSTS TO AROUND 17 MPH IN THE
AFTERNOON.
RIDGETOP WIND.......LIGHT WINDS BECOMING SOUTHWEST 8 TO 12 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE WEST 8 TO
10 MPH WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......6900 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST AROUND 17 MPH.
VENTILATION INDEX...LOW (80) INCREASING TO VERY HIGH (820) 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............43 46 57 61 69 71 73 74 73 74 71 70
RH..............73 71 59 45 33 26 23 23 23 24 27 31
20 FT WIND DIR..SW S S SW SW SW W W W W W W
20 FT WIND SPD..3 3 3 4 5 6 7 8 8 10 10 10
20 FT WIND GUST.4 5 6 7 10 11 13 14 16 17 17
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS EARLY IN THE EVENING.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....42-45.
MAX HUMIDITY........87-92 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH. GUSTS UP TO 20 MPH EARLY
IN THE EVENING.
RIDGETOP WIND.......WEST WINDS 8 TO 12 MPH. GUSTS UP TO 25 MPH EARLY
IN THE EVENING.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 17 MPH.
VENTILATION INDEX...MODERATE (380) DECREASING TO LOW (180)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF RAIN
SHOWERS.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.12 PERCENT.
MAX TEMPERATURE.....62-65.
MIN HUMIDITY........55-60 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH. GUSTS UP TO 20 MPH LATE
IN THE MORNING.
RIDGETOP WIND.......WEST WINDS 8 TO 12 MPH. GUSTS UP TO 25 MPH LATE
IN THE MORNING.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 17 MPH.
VENTILATION INDEX...MODERATE (240) INCREASING TO HIGH (600) IN THE
AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...PETER TRASK
TYPE OF REQUEST...WILDFIRE
.TAG 2616153.0/PDT
.DELDT 06/25/26
.FORMATTERVERSION 2.0.0
.EMAIL PETER.TRASK@USDA.GOV
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