082
FNUS76 KPDT 010720
FWSPDT
SPOT FORECAST FOR IRRIGATION RX...OR-MHF
NATIONAL WEATHER SERVICE PENDLETON OR
1220 AM PDT FRI MAY 1 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON MAY 01.
***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
MAINLY DRY WEATHER IS EXPECTED THROUGH SATURDAY. WINDS
WILL GENERALLY BE 10 MPH OR LESS. MIN RH WILL BE 25 TO 30
PERCENT TODAY AND AROUND 30 PERCENT ON SATURDAY WITH MODERATE
OVERNIGHT RECOVERIES.
THERE IS A VERY LOW CHANCE (<15%) THAT COULD ALSO BRING A VERY
LOW CHANCE (<10%) CHANCE OF A THUNDERSTORM BOTH FRIDAY AND SATURDAY.
TODAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.8 PERCENT.
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE NORTHEAST
LATE IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHEAST WIND AROUND 10 MPH INCREASING TO 15 MPH
LATE IN THE MORNING AND BECOMING SOUTH, THEN DECREASING
TO 5 TO 10 MPH IN THE AFTERNOON AND BECOMING EAST TO
SOUTHEAST IN THE AFTERNOON.
MIXING HEIGHT.......6800 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 10 MPH SHIFTING TO THE NORTH AROUND
9 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...MODERATE (450) IN THE AFTERNOON.
TIME (PDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
CHC OF LTNG (%).0 0 0 0 0 0 0 10 10 10 0 0
TEMP............64 67 69 72 73 74 75 73 72 69 64 61
RH..............37 33 31 30 28 28 27 29 34 41 47 50
20 FT WIND DIR..SE SE SE SE NE NE NE N N N NW NW
20 FT WIND SPD..3 5 5 5 5 5 5 6 6 6 6 6
20 FT WIND GUST.6 7 7 7 10 10 10 10 10 10 10 10
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.8 PERCENT.
MIN TEMPERATURE.....52-55.
MAX HUMIDITY........64-69 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 7 MPH SHIFTING TO THE
NORTHWEST EARLY IN THE EVENING, THEN BECOMING
LIGHT EARLY IN THE MORNING.
RIDGETOP WIND.......EAST WIND INCREASING TO 15 TO 20 MPH IN THE
EVENING THEN DECREASING TO 5 TO 10 MPH OVERNIGHT.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....NORTH 8 TO 9 MPH SHIFTING TO THE NORTHWEST 5 TO
9 MPH LATE IN THE EVENING.
VENTILATION INDEX...LOW (170) DECREASING TO LOW (60) OVERNIGHT.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.9 PERCENT.
MAX TEMPERATURE.....74-77.
MIN HUMIDITY........28-33 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 8 MPH LATE
IN THE MORNING.
RIDGETOP WIND.......EAST WIND 5 TO 10 MPH BECOMING NORTHEAST AND
INCREASING TO 10 TO 15 MPH IN THE AFTERNOON.
MIXING HEIGHT.......5900 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE EAST 8 TO 15
MPH LATE IN THE MORNING.
VENTILATION INDEX...LOW (40) INCREASING TO MODERATE (360) IN THE
AFTERNOON.
FORECASTER...NIERENBERG
REQUESTED BY...JOHN BITZBERGER
TYPE OF REQUEST...PRESCRIBED
.TAG 2612362.0/PDT
.DELDT 05/01/26
.FORMATTERVERSION 2.0.0
.EMAIL JBITZBERGER@GMAIL.COM,JOHN.BITZBERGER@USDA.GOV
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