013
FNUS76 KPQR 161611
FWSPQR
SPOT FORECAST FOR MT HEBO MEADOWS RX...USFS
NATIONAL WEATHER SERVICE PORTLAND OR
911 AM PDT TUE SEP 16 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON SEPTEMBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
THE FORECAST WEDNESDAY THROUGH THURSDAY IS
HIGHLIGHTED BY ELEVATED RELATIVE HUMIDITY VALUES AND BREEZY
NORTH TO NORTHWEST WINDS WEDNESDAY AFTERNOON THROUGH THURSDAY.
WINDS LOOK TO BE STRONGEST WEDNESDAY NIGHT THROUGH THURSDAY
MORNING WITH WIND GUSTS APPROACHING 25 MPH AT TIMES.
WEDNESDAY LOOKS MOSTLY CLEAR TO PARTLY CLOUDY, AS LOW MARINE
CLOUDS WILL LIKELY STAY TO THE WEST CLOSER TO THE COAST. THE
CLOUD COVER FORECAST IS MORE UNCERTAIN WEDNESDAY NIGHT THROUGH
FRIDAY MORNING AS LOW MARINE CLOUDS WILL ATTEMPT TO PUSH INTO
THE BURN SITE DURING THE OVERNIGHT/MORNING HOURS, BUT IT IS
UNCLEAR IF THEY WILL MAKE IT THAT FAR EAST. RIGHT NOW, ODDS
FAVOR PARTLY CLOUDY SKIES IN THE MORNING RATHER THAN COMPLETELY
OVERCAST. CLOUD COVER SHOULD INCREASE SIGNIFICANTLY ON SATURDAY
AND SUNDAY AS A PACIFIC COLD FRONT MOVES INLAND AND BRINGS A
30-50% CHANCE OF RAIN ALONG WITH COOLER TEMPERATURES AND
HIGH RELATIVE HUMIDITY VALUES. NOT EXPECTING SIGNIFICANT
WINDS WITH THE FRONTAL PASSAGE THIS WEEKEND.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CWR.................1 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........61 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING NORTHWEST AROUND 6 MPH
LATE IN THE AFTERNOON.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 14 MPH.
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........24 24 24 21 21 21 30 30 30 36
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............53 56 59 61 62 64 65 64 64 63
RH..............77 73 66 61 62 62 63 66 69 72
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..3 3 3 2 2 2 4 4 4 6
20 FT WIND GUST.6 6 6 7 7 7 10 10 10 14
MIX HGT (KFT)...0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.1 0.1
TRANSP WIND DIR.N N N N N N N N N N
TRANSP WIND SPD.5 5 7 9 9 9 9 10 13 14
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........81 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 6 TO 10 MPH. GUSTS UP TO 23 MPH
EARLY IN THE EVENING.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....NORTH 13 TO 14 MPH.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........36 36 35 35 35 28 28 28 28 28 28 46
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............61 58 56 55 55 54 54 53 53 53 52 52
RH..............75 78 81 81 80 80 80 81 81 81 81 81
20 FT WIND DIR..NW NW NW NW NW N N N N N N N
20 FT WIND SPD..6 6 7 7 7 9 9 9 10 10 10 10
20 FT WIND GUST.14 14 16 16 16 18 18 18 18 18 18 18
MIX HGT (KFT)...0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
TRANSP WIND DIR.N N N N N N N N N N N N
TRANSP WIND SPD.14 14 13 13 13 13 13 13 13 13 13 13
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........66 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 22 MPH
IN THE MORNING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTH 10 TO 13 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........46 46 50 50 50 35 35 35 30 30 30 29
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............52 53 53 56 58 61 62 63 64 64 64 64
RH..............81 80 80 76 73 69 68 68 67 67 68 68
20 FT WIND DIR..N N N N N N N N NW NW NW NW
20 FT WIND SPD..10 10 7 7 7 5 5 5 5 5 5 6
20 FT WIND GUST.18 18 16 16 16 12 12 12 11 11 11 13
MIX HGT (KFT)...0.1 0.1 0.1 0.1 0.1 0.2 0.3 0.4 0.4 0.3 0.1 0.1
TRANSP WIND DIR.N N N N N N N N N N N N
TRANSP WIND SPD.13 13 10 10 12 12 12 10 10 10 12 12
FORECASTER...KRANZ
REQUESTED BY...CAROL DAVISCOURT
TYPE OF REQUEST...PRESCRIBED
.TAG 2521994.0/PQR
.DELDT 09/16/25
.FORMATTERVERSION 2.0.0
.EMAIL CAROL.DAVISCOURT@USDA.GOV
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