653
FNUS76 KPDT 221149
FWSPDT
SPOT FORECAST FOR PARADISE FIRE...USDA/FOREST SERVICE
NATIONAL WEATHER SERVICE PENDLETON OR
449 AM PDT TUE SEP 22 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON SEPTEMBER 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
SOUTHWEST WINDS WILL SHIFT TO THE WEST IN THE MORNING
THEN SHIFT BACK TO THE SOUTHWEST IN THE OVERNIGHT HOURS TODAY AND
WEDNESDAY. AFTERNOON RHS WILL REMAIN ELEVATED, WITH LOWER 40S THIS
AFTERNOON AND UPPER 30S TOMORROW. MID-LEVEL INVERSION WILL REMAIN OVER
THE FIRE AREA THIS AFTERNOON (ABOUT 2KFT TO 2.5KFT AGL), WITH LOW
LEVEL INVERSION DEVELOPING SHORTLY AFTER SUNSET.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
MOSTLY SUNNY (35-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....61-64.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE WEST
AROUND 10AM.
RIDGETOP WIND.......SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE WEST
6 TO 12 MPH AROUND 10AM.
MIXING HEIGHT.......2300 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 12 MPH.
VENTILATION INDEX...LOW (40-50) INCREASING TO MODERATE (200-210) 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............53 52 54 55 58 59 60 60 61 60 60 59
RH..............59 61 57 53 49 47 46 45 47 47 46 47
20 FT WIND DIR..SW SW SW SW W W W W W W W W
20 FT WIND SPD..5 5 6 6 6 7 8 9 9 10 9 8
20 FT WIND GUST. 10 12 14 14 16 13 11
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....41-44.
MAX HUMIDITY........67-72 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTHWEST
4 TO 7 MPH AROUND 12AM.
RIDGETOP WIND.......WEST WINDS 6 TO 12 MPH SHIFTING TO THE SOUTHWEST
5 TO 8 MPH AROUND 12AM.
MIXING HEIGHT.......500 FT AGL IN THE EVENING.
TRANSPORT WINDS.....SOUTHWEST 7 TO 12 MPH.
VENTILATION INDEX...LOW (80) DECREASING TO LOW (30-40) OVERNIGHT.
WEDNESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT) THEN BECOMING MOSTLY
CLOUDY (75-85 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....60-63.
MIN HUMIDITY........37-42 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE WEST
AFTER 9AM.
RIDGETOP WIND.......SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE WEST
AFTER 9AM.
MIXING HEIGHT.......3300 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST 7 TO 9 MPH SHIFTING TO THE NORTHWEST
AROUND 6 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (50) INCREASING TO MODERATE (220-250) IN
THE AFTERNOON.
FORECASTER...LAWHORN
REQUESTED BY...DEREK DIETZ
TYPE OF REQUEST...WILDFIRE
.TAG 2622100.4/PDT
.DELDT 09/22/26
.FORMATTERVERSION 2.0.0
.EMAIL DEREK.DIETZ@USDA.GOV
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