850
FNUS76 KPQR 170420
FWSPQR
SPOT FORECAST FOR QUAMASH...CONFEDERATED TRIBES OF GRAND RONDE
NATIONAL WEATHER SERVICE PORTLAND OR
920 PM 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
WARM AND DRY AS A WEAKENING FRONT STALLS ALONG THE
COAST. THE MORNING INVERSION WILL LIFT AFTER 1200 TODAY REBUILDING
AFTER 2200 - THOUGH INTO THURSDAY MORNING THE INVERSION WILL BE
WEAKER OVERALL. WINDS WILL BE ONSHORE THROUGH THE NEXT 24 HOURS
WITH INCREASING SPEEDS IN THE AFTERNOON. GIVEN THE TERRAIN
ALIGNMENT, WINDS WILL BE MORE NORTH-NORTHWEST AND WILL BE GUSTIER
IN THE AFTERNOON. THERE IS A 10% CHANCE OF GUSTS GREATER THAN 12
MPH IN THE AFTERNOON.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........46 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH 5 TO 7 MPH LATE IN
THE AFTERNOON. GUSTS UP TO 12 MPH DURING PEAK
HEATING
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........9 9 9 6 6 6 4 4 4 8
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............57 61 66 70 74 76 78 80 79 78
RH..............83 77 71 62 57 52 47 46 46 51
20 FT WIND DIR..NW NW NW N N N N N N N
20 FT WIND SPD..2 2 2 3 3 3 5 5 5 7
20 FT WIND GUST.4 4 4 6 6 6 10 10 10 13
MIX HGT (KFT)...0.4 1.0 1.5 2.1 2.7 3.2 3.6 3.9 4.0 3.7
TRANSP WIND DIR.N N N N N N N N N N
TRANSP WIND SPD.5 5 5 5 6 7 8 9 9 10
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........84 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 7 MPH BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTH 7 TO 15 MPH.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........8 8 15 15 15 20 20 20 23 23 23 31
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............76 72 68 65 64 63 61 60 59 58 57 56
RH..............55 61 68 73 74 75 79 80 80 81 83 84
20 FT WIND DIR..N N NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..7 7 6 6 6 5 5 5 5 5 5 3
20 FT WIND GUST.13 13 11 11 11 10 10 10 10 10 10 6
MIX HGT (KFT)...2.9 2.0 1.2 0.8 0.8 0.8 0.7 0.7 0.7 0.6 0.5 0.6
TRANSP WIND DIR.N N NW N N N N N N N N N
TRANSP WIND SPD.13 14 15 14 12 10 10 10 10 9 8 7
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........50 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH 5 TO 7 MPH LATE IN
THE MORNING.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....NORTH 7 TO 15 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........31 31 48 48 48 37 37 37 20 20 20 14
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............57 57 58 61 64 67 70 73 76 76 77 77
RH..............84 84 84 78 72 66 62 58 54 53 51 50
20 FT WIND DIR..NW NW N N N N N N N N N N
20 FT WIND SPD..3 3 4 4 4 5 5 5 6 6 6 7
20 FT WIND GUST.6 6 7 7 7 10 10 10 12 12 12 13
MIX HGT (KFT)...0.7 1.0 1.4 2.0 2.7 3.3 3.7 3.9 4.1 4.3 4.3 4.0
TRANSP WIND DIR.N N N N N N N N N N N N
TRANSP WIND SPD.7 9 10 13 14 15 15 14 13 13 12 12
FORECASTER...MUESSLE
REQUESTED BY...ANDREW PUERINI
TYPE OF REQUEST...PRESCRIBED
.TAG 2522069.0/PQR
.DELDT 09/17/25
.FORMATTERVERSION 2.0.0
.EMAIL ANDREW.PUERINI@GRANDRONDE.ORG
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