543
FNUS76 KPDT 240510
FWSPDT
SPOT FORECAST FOR OBIE RX...OREGON STATE UNIVERSITY
NATIONAL WEATHER SERVICE PENDLETON OR
1010 PM PDT WED OCT 23 2024
FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON OCTOBER 24.
***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10-MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
DRY CONDITIONS WILL PERSIST THROUGH THE FORECAST
PERIOD. WINDS WILL BE FROM THE SOUTHWEST TO START BEFORE SHIFTING
MULTIPLE TIMES THROUGH THE DAY (SEE BELOW FOR MORE IN DEPTH
DETAILS). WHEN THE WINDS TURN TO THE SOUTH AND SOUTHEAST, THERE
WILL BE ELEVATED CHANCES OF SOME SLIGHT DOWNSLOPING OFF THE RIDGES
WITH THE SOUTH FLOW OVER THE EAST-WEST ORIENTED RIDGELINE. WINDS
COULD PICK UP SLIGHTLY TO NEAR 15 MPH. DAYTIME RH VALUES WILL BE
GOOD RANGING BETWEEN 39-44% AND 33-38% RESPECTIVELY WITH MODERATE
OVERNIGHT RECOVERIES OF 58-63%.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
LAL.................1.
MAX TEMPERATURE.....44-47.
MIN HUMIDITY........39-44 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE WEST
5 TO 7 MPH AROUND 2 PM, THEN SHIFTING
TO THE NORTHEAST AROUND 5 MPH AROUND 5 PM.
RIDGETOP WIND.......SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE WEST
7 TO 9 MPH AROUND 2 PM, THEN SHIFTING
TO THE NORTHEAST AROUND 7 MPH AROUND 5 PM.
MIXING HEIGHT.......2000 FT AGL LATE IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST 5 TO 6 MPH IN THE LATE MORNING AND
AFTERNOON BECOMING LIGHT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TIME (PDT) 9 AM 11 AM 1 PM 3 PM 5 PM 7 PM
TEMP............29 34 39 43 42 41
RH..............86 71 54 44 45 51
20 FT WIND......SW 7 SW 6 SW 6 W 5 NE 5 NE 5
20 FT WIND GUST. 6
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
CWR.................0 PERCENT.
LAL.................1.
MIN TEMPERATURE.....30-33.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 7 MPH SHIFTING TO THE
SOUTHEAST 5 TO 8 MPH AROUND 8 PM.
RIDGETOP WIND.......NORTHEAST WINDS 7 TO 9 MPH SHIFTING TO THE
SOUTHEAST 10 TO 14 MPH AROUND 8 PM.
MIXING HEIGHT.......400 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH EARLY
IN THE EVENING.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
LAL.................1.
MAX TEMPERATURE.....53-56.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH SHIFTING TO THE
SOUTH AROUND 11 AM.
RIDGETOP WIND.......SOUTHEAST WINDS 10 TO 14 MPH SHIFTING TO THE
SOUTH AROUND 11 AM.
MIXING HEIGHT.......2100 FT AGL LATE IN THE MORNING.
TRANSPORT WINDS.....SOUTH 6 TO 12 MPH.
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE
PLUME DOMINATED FIRE GROWTH.
FORECASTER...BENNESE
REQUESTED BY...JOHN PUNCHES
TYPE OF REQUEST...PRESCRIBED
.TAG 2424775.0/PDT
.DELDT 10/23/24
.FORMATTERVERSION 2.0.0
.EMAIL JOHN.PUNCHES@OREGONSTATE.EDU
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