453
FNUS76 KPDT 221226
FWSPDT
SPOT FORECAST FOR EKONE RX...WASHINGTON DNR
NATIONAL WEATHER SERVICE PENDLETON OR
526 AM PDT FRI MAY 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON MAY 22.
***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
WARM, DRY CONDITIONS ARE FORECAST TODAY THROUGH
THE WEEKEND. AFTERNOON RH IN THE 20S, FOLLOWED BY GOOD OVERNIGHT
RECOVERY. CONFIDENCE IN FORECAST DETAILS BEYOND SUNDAY IS LOW, BUT
CONFIDENCE IS HIGH (80 PERCENT) THAT A LOW-PRESSURE SYSTEM AND
ATTENDANT COLD FRONT WILL ARRIVE BY MONDAY, USHERING IN BREEZY TO
WINDY WESTERLY WINDS AND A CHANCE (25 PERCENT) OF RAIN SHOWERS. MOST
LIKELY CONDITIONS FOR TUESDAY ONWARD HAVE BEEN INCLUDED IN THE OUTLOOK.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (5-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....74-77.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........VARIABLE WINDS 1-4 MPH EARLY MORNING, BECOMING
SOUTH 3-7 MPH BY MID-MORNING THEN BECOMING
SOUTHWEST BY MID-AFTERNOON. GUSTS UP TO 15 MPH.
RIDGETOP WIND.......VARIABLE WINDS 1-4 MPH EARLY MORNING, BECOMING
SOUTH 5-9 MPH BY MID-MORNING THEN BECOMING
SOUTHWEST BY MID-AFTERNOON. GUSTS UP TO 15 MPH.
MIXING HEIGHT.......INCREASING TO 7000-7500 FT AGL BY EARLY AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 3-5 MPH EARLY MORNING, SHIFTING TO THE
SOUTHWEST THEN WEST 6-10 MPH BY MID-MORNING AND
AFTERNOON.
VENTILATION INDEX...LOW (30) INCREASING TO HIGH (560) IN THE
AFTERNOON.
TIME (PDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............55 61 68 72 74 74
RH..............40 35 34 30 27 27
20 FT WIND......N 4 S 4 S 5 S 6 SW 7 SW 7
20 FT WIND GUST. 12 12
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....50-53.
MAX HUMIDITY........65-70 PERCENT.
WIND (20 FT)........WEST WINDS 3-7 MPH SHIFTING TO THE NORTHWEST
SHIFTING TO THE NORTHEAST THEN NORTH LATE EVENING
AND OVERNIGHT. GUSTS UP TO 15 MPH IN THE EARLY
EVENING.
RIDGETOP WIND.......WEST WINDS 3-7 MPH SHIFTING TO THE NORTHWEST
SHIFTING TO THE NORTHEAST THEN NORTH LATE EVENING
AND OVERNIGHT. GUSTS UP TO 15 MPH IN THE EARLY
EVENING.
MIXING HEIGHT.......DECREASING TO 300-600 FT AGL OVERNIGHT.
TRANSPORT WINDS.....WEST 8-12 MPH SHIFTING TO THE NORTH TO NORTHWEST
LATE IN THE EVENING AND OVERNIGHT.
VENTILATION INDEX...DECREASING TO LOW (30) OVERNIGHT.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........27-32 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 3-7 MPH IN THE MORNING, BECOMING WEST
10-15 MPH WITH GUSTS OF 15-25 MPH IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHWEST WINDS 4-8 MPH IN THE MORNING, BECOMING WEST
15-20 MPH WITH GUSTS OF 20-30 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 4500-5000 FT AGL BY AFTERNOON.
TRANSPORT WINDS.....WEST 8-12 MPH IN THE MORNING, INCREASING TO 15-20 MPH
IN THE AFTERNOON.
VENTILATION INDEX...LOW (100) INCREASING TO HIGH (630) IN THE
AFTERNOON.
FORECAST DAYS 3 THROUGH 7
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. WEST
WINDS 5-10 MPH WITH GUSTS OF 12-17 MPH IN THE MORNING, INCREASING
TO 15-20 MPH WITH GUSTS OF 20-30 MPH IN THE AFTERNOON.
MEMORIAL DAY
COOLER. MOSTLY CLOUDY. CHANCE (25 PERCENT) OF SHOWERS. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 60S. WEST WINDS 10-20 MPH WITH GUSTS
OF 20-30 MPH IN THE MORNING, INCREASING TO 20-30 MPH WITH GUSTS
OF 35-45 MPH IN THE AFTERNOON.
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE LOWER 40S.
HIGHS IN THE UPPER 50S. WEST WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 60S.
THURSDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S.
OUTLOOK FOR FRIDAY MAY 29 THROUGH THURSDAY JUNE 04
A GREATER CHANCE OF ABOVE-NORMAL TEMPERATURES AND NEAR-NORMAL
PRECIPITATION.
FORECASTER...PLUNKETT
REQUESTED BY...KYLE LAPHAM
TYPE OF REQUEST...PRESCRIBED
.TAG 2614222.1/PDT
.DELDT 05/22/26
.FORMATTERVERSION 2.0.0
.EMAIL KYLE.LAPHAM@DNR.WA.GOV
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