226
FNUS76 KPQR 091325
FWSPQR
SPOT FORECAST FOR HIGH LAVA...USFS
NATIONAL WEATHER SERVICE PORTLAND OR
625 AM PDT WED SEP 9 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 PDT ON SEPTEMBER 09.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
POOR RH TO START THE MORNING WEDNESDAY ALONG WITH
CONTINUED WARMING AND DRYING CONDITIONS WILL LEAD TO MINIMUM RH
VALUES IN THE 20S TODAY. EAST WINDS THIS MORNING WILL SHIFT
WESTERLY BY MID TO LATE AFTERNOON. WEST WINDS CONTINUE INTO
THURSDAY WITH MOISTURE INCREASING LEADING TO MUCH BETTER RH
RECOVERIES TONIGHT AND MINIMUM RH VALUES IN THE 60S THURSDAY.
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........23-27 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 5 TO 8 MPH DECREASING TO 2 TO 5 MPH
AFTER 1000, THEN SHIFTING WESTERLY AFTER 1400.
RIDGETOP...........EAST WINDS 7 TO 11 MPH DECREASING TO 2 TO 5 MPH
AFTER 1000, THEN SHIFTING WESTERLY AFTER 1400.
MIXING HEIGHT.......2800 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 9 MPH SHIFTING TO THE SOUTHWEST AROUND
5 MPH EARLY IN THE AFTERNOON, THEN SHIFTING TO THE
WEST 5 TO 8 MPH LATE IN THE AFTERNOON.
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........3 1 5 10 11 12 8 5 4 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0
TEMP............52 56 61 65 70 74 75 77 77 75
RH..............45 44 42 40 38 30 29 25 24 23
20 FT WIND DIR..E E SE SE SE SE S SW W W
20 FT WIND SPD..8 6 3 2 2 2 2 3 3 4
20 FT WIND GUST.13 10 7 5 5 5 5 6 8 10
RIDGE WIND DIR..E E SE SE SE SE S SW W W
RIDGE WIND SPD..11 9 4 4 3 2 2 3 4 4
MIX HGT (KFT)...0.4 0.5 0.7 1.4 1.8 2.1 2.6 2.8 2.7 2.0
TRANSP WIND DIR.E E E E E SE SW W W W
TRANSP WIND SPD.9 8 8 8 7 6 5 5 6 8
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........83-88 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS UP TO 5 MPH.
RIDGETOP...........WEST WINDS 3 TO 7 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 9 MPH.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 12 14 17 24 22 29 40 50 47 63 82
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............73 70 65 62 61 61 61 60 59 58 57 56
RH..............35 42 55 60 60 59 60 62 65 66 69 70
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..4 3 3 3 3 3 4 4 5 5 6 6
20 FT WIND GUST.8 7 6 6 6 7 8 8 10 10 10 10
RIDGE WIND DIR..W W W W W W W W W W W W
RIDGE WIND SPD..5 4 3 3 3 4 4 5 6 6 7 7
MIX HGT (KFT)...1.3 0.5 0.3 0.3 0.3 0.2 0.3 0.3 0.2 0.3 0.2 0.3
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.8 7 7 7 7 7 7 8 8 9 9 9
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........60-65 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 9 MPH. GUSTS UP TO 20 MPH AFTER
1100.
RIDGETOP...........WEST WINDS 6 TO 11 MPH. GUSTS UP TO 24 MPH LATE
IN THE MORNING.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 15 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........82 82 74 74 74 74 74 74 76 76 76 63
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............54 52 50 52 54 56 58 61 62 62 62 59
RH..............74 81 86 85 83 78 74 69 65 65 64 64
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..6 6 6 6 6 7 7 7 9 9 9 9
20 FT WIND GUST.10 10 13 13 13 18 18 18 19 19 19 19
RIDGE WIND DIR..W W W W W W W W W W W W
RIDGE WIND SPD..7 7 8 8 8 9 9 10 10 11 11 11
MIX HGT (KFT)...0.3 0.3 0.3 0.9 1.5 2.1 3.0 3.3 2.9 3.4 3.1 2.7
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.8 8 8 10 13 13 12 13 15 14 14 15
FORECASTER...HEC
REQUESTED BY...BRIAN SCOTT
TYPE OF REQUEST...WILDFIRE
.TAG 2621427.0/PQR
.DELDT 09/09/26
.FORMATTERVERSION 2.0.0
.EMAIL BRIAN.SCOTT@USDA.GOV,KEITH.MCMILLEN@USDA.GOV
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