559
FNUS76 KPDT 302327
FWSPDT
SPOT FORECAST FOR MUTTON RX...WSA
NATIONAL WEATHER SERVICE PENDLETON OR
427 PM PDT THU APR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 1700 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
THROUGH 1 AM FRIDAY...DEPENDING ON EXACT ELEVATION IN THE
GENERAL BURN AREA, THE WINDS ARE ANTICIPATED TO BE NORTH
OR SLIGHTLY NORTHEAST, AROUND 5-10 MPH... WITH HIGHER ELEVATED
RIDGES SEEING CLOSER TO 15 MPH. AFTER 2 AM LIGHT AND
VARIABLE DOWN VALLEY WINDS DEVELOP WITH RH RECOVERIES TO
AROUND 45 PERCENT OVERNIGHT.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....79-82.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH.
RIDGETOP WIND.......
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
VENTILATION INDEX...MODERATE (360).
TIME (PDT) 5 PM 7 PM 9 PM 11 PM 1 AM 3 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............79 74 65 60 55 49
RH..............23 27 36 44 52 61
20 FT WIND......N 10 N 10 N 7 N 5 N 5 E 4
20 FT WIND GUST.14 14 11 6 6
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....45-48.
MAX HUMIDITY........65-70 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH IN THE EVENING AND
OVERNIGHT BECOMING LIGHT.
RIDGETOP WIND.......NORTH WINDS 12 TO 17 MPH IN THE EVENING AND
OVERNIGHT BECOMING 6 TO 10.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 7 TO 10 MPH IN THE EVENING AND
OVERNIGHT BECOMING LIGHT, THEN BECOMING SOUTH
AROUND 5 MPH EARLY IN THE MORNING.
VENTILATION INDEX...MODERATE (360) DECREASING TO LOW (60)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.6 PERCENT.
MAX TEMPERATURE.....84-87.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE NORTH 5 TO
11 MPH LATE IN THE AFTERNOON.
RIDGETOP WIND.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE NORTH 5 TO
11 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......9400 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 8 MPH SHIFTING TO THE NORTH AROUND
12 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (90) INCREASING TO MODERATE (450) IN THE
AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...JEFF CASEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2612331.0/PDT
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL JEFF.CASEY@CTWSBNR.ORG,JPNDSAMPSON@GMAIL.COM,JOEL.THOMPSON@CTWSBNR.ORG
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