090
FNUS76 KPDT 210209
FWSPDT
SPOT FORECAST FOR PARADISE FIRE...USDA/FOREST SERVICE
NATIONAL WEATHER SERVICE PENDLETON OR
709 PM PDT SUN SEP 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON SEPTEMBER 20.
***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
DRY AND WARM CONDITIONS WILL PERSIST OVER THE
FIRE THROUGH THE PERIOD. RELATIVE HUMIDITY WILL BE IN THE LOW
TO MID 30% WITH DIURNAL WINDS. OVERNIGHT RECOVERIES WILL BE
IN THE UPPER 40%. MONDAY WILL SEE RELATIVE HUMIDITY IN THE LOW
TO MID 30% WITH VARIABLE WINDS BELOW 10 MPH.
TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........34-39 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH THROUGH 1100
THEN BECOMING SOUTH TO SOUTHWEST AROUND
3 TO 5 MPH SHIFTING TO THE NORTHWEST 5
TO 7 MPH AFTER 1400.
RIDGETOP WIND.......SOUTHEAST WINDS 7 TO 10 MPH THROUGH 1100
THEN BECOMING SOUTH TO SOUTHWEST AROUND
5 TO 7 MPH SHIFTING TO THE NORTHWEST 7
TO 9 MPH AFTER 1400.
MIXING HEIGHT.......5200 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTHEAST 5 TO 8 MPH SHIFTING TO THE NORTHEAST
AROUND 6 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (50) INCREASING TO LOW (180-190) 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............51 50 54 58 64 66 67 68 68 67 67 66
RH..............60 62 58 52 46 42 40 38 39 38 38 39
20 FT WIND DIR..SE SE SE SE SE S S SW NW NW NW NW
20 FT WIND SPD..7 6 6 5 4 3 4 5 5 6 6 6
20 FT WIND GUST. 7 7 6 5 4 5 6 7 7 8 8
TONIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....53-56.
MAX HUMIDITY........48-53 PERCENT.
WIND (20 FT)........NORTH WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHEAST 5 TO 8 MPH OVERNIGHT.
RIDGETOP WIND.......NORTH WINDS AROUND 7 MPH SHIFTING TO THE
SOUTHEAST 7 TO 10 MPH OVERNIGHT.
MIXING HEIGHT.......500 FT AGL IN THE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 6 MPH SHIFTING TO THE
SOUTHEAST 9 TO 10 MPH EARLY IN THE EVENING,
THEN SHIFTING TO THE SOUTH AROUND 9 MPH EARLY
IN THE MORNING.
VENTILATION INDEX...LOW (70) DECREASING TO LOW (40) OVERNIGHT.
MONDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........31-36 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH THROUGH 0800 SHIFTING
TO THE SOUTHWEST 5 TO 7 MPH, THEN SHIFTING TO
THE WEST AFTER 1600 THEN BECOMING LIGHT.
RIDGETOP WIND.......SOUTH WINDS 7 TO 10 MPH THROUGH 0800 SHIFTING
TO THE SOUTHWEST 7 TO 9 MPH, THEN SHIFTING TO
THE WEST AFTER 1600 THEN BECOMING VARIABLE 3 TO
5 MPH.
MIXING HEIGHT.......5500 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTH 9 TO 10 MPH SHIFTING TO THE NORTHWEST
LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (70) INCREASING TO MODERATE (350-380) IN
THE AFTERNOON.
FORECASTER...BENNESE
REQUESTED BY...DEREK DIETZ
TYPE OF REQUEST...WILDFIRE
.TAG 2622100.2/PDT
.DELDT 09/20/26
.FORMATTERVERSION 2.0.0
.EMAIL DEREK.DIETZ@USDA.GOV
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