615
FXUS66 KPDT 051732
AFDPDT
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
932 AM PST WED NOV 5 2025
UPDATED AVIATION DISCUSSION
AVIATION
KDLS/KPSC WILL BE IN MVFR UNTIL THIS LATE MORNING
WITH KYKM JOINING IN THROUGH THIS AFTERNOON. OTHERWISE, THE
REMAINING SITES WILL BE IN VFR FOR THIS PERIOD. THIS SYSTEM WILL
BRING MORE RAIN SHOWERS WITH ADDITIONAL MOISTURE FROM THE
ATMOSPHERIC RIVER FOR KDLS/KRDM/KBDN/KYKM/KALW BETWEEN THIS
MORNING AND EVENING HOURS. BREEZY TO WINDY CONDITIONS WILL
PREVAIL ACROSS MOST SITES IN THE AFTERNOON THROUGH EVENING WITH
SUSTAINED WINDS OF 12-20KTS AND GUSTS AT 20-30KTS EXCEPT KDLS.
THUNDERSTORMS COULD DEVELOP AS WELL IN LATER AFTERNOON HOURS, BUT
WAS NOT CONFIDENT ENOUGH (<20%) TO MENTION IN THE TAFS. FEASTER/97
PREV DISCUSSION... /ISSUED 251 AM PST WED NOV 5 2025/
DISCUSSION
OBSERVATIONS HAVE SHOWN IN THE LAST COUPLE OF HOURS
VISIBILITIES <= 1/4 MILE FOR PARTS OF BEND/REDMOND/PENDLETON/MISSION.
WENT AHEAD AND ISSUED A FOG ADVISORY FOR CENTRAL OREGON AND THE
FOOTHILLS OF THE BLUE MOUNTAINS IN OREGON. NOT EXPECTING FOG TOO
LAST LONG IN THE MORNING SO WENT AHEAD AND ISSUED THE ADVISORY
UNTIL 4 AM WHEN WINDS WILL GET A LITTLE STRONGER TO HOPEFULLY MIX
THE SURFACE AND LIFT THE FOG OUT OF THE AREA. IF FOG STILL PERSIST
CLOSER TO 4 AM, I MIGHT EXTEND IT FOR A FEW MORE HOURS LATER INTO
THE MORNING. FOR NOW, WARM FRONT HAS LIFTED AND COMMENCES SPOTTY
SHOWERS ACROSS THE PARTS OF THE BASIN WITH THE MORE WIDESPREAD/HEAVY
RAIN ASSOCIATED WITH THE ATMOSPHERIC RIVER IS SITUATED NEAR THE
CASCADES AND GORGE AREAS. RAIN WILL CONTINUE TO PUSH THROUGH THE
AREA, DELIVERING SOME PRECIPITATION THROUGHOUT THE REGION THROUGH
WEDNESDAY. AS THE SYSTEM WITH THE ASSOCIATED COLD FRONT PASSES
THROUGH WEDNESDAY, SNOW LEVELS WILL RISE 6000 TO 8000 FEET,
LEAVING THIS A PRIMARILY RAIN EVENT EXCEPT FOR VERY HIGH
PEAKS/CRESTS IN THE CASCADES AND WALLOWA'S.
WITH THE APPROACHING COLD FRONT PASSING THROUGH THE REGION, BREEZY
TO WINDY CONDITIONS WILL DEVELOP ACROSS CENTRAL OREGON THROUGH THE
BLUE MOUNTAINS & FOOTHILLS LATE WEDNESDAY MORNING INTO THURSDAY
WITH GUSTS UP TO 40 MPH IN SOME LOCATIONS. THE ENVIRONMENT WILL
REMAIN SHOWERY WITH SOME DEVELOPMENT OF THUNDERSTORMS ACROSS
PORTIONS OF THE COLUMBIA BASIN THROUGH THE BLUE/WALLOWA MOUNTAINS
AS INSTABILITY INCREASES COUPLED WITH CAM PAINTBALLS SHOWING >40
REFLECTIVITY IN LOCATIONS WEDNESDAY AFTERNOON THROUGH THE EVENING
HOURS. NOT EXPECTING WIDESPREAD SEVERE ACTIVITY AS THE SPC HAS US
IN A GENERAL THUNDERSTORM OUTLOOK BUT ALSO DAYTIME HEATING SEEMS A
BIT LIMITED WITH THE SHORTER DAYS AND LACK OF ADEQUATE CLOUD
BREAKING PRIOR TO STORM DEVELOPMENT.
A BREAK IN THE ACTIVE WEATHER WILL BE FELT WITH DRY CONDITIONS
GOING THROUGH THE WEEKEND, AS A RIDGE DEVELOPS AND AMPLIFY'S
SHORTLY BEFORE PUSHING ASHORE SOMETIME SATURDAY MORNING/AFTERNOON
HOURS. PRECIP CHANCES DROP TO 0 FOR THE MOST OF THE REGION GOING
THROUGH THE WEEKEND, BUT MAY PROVE SHORT-LIVED FOR BEFORE ANOTHER
SHORTWAVE MAKES ITS WAY IN THE BEGINNING OF NEXT WORK WEEK AND
DEVELOP SHOWERS ACROSS THE REGION ON MONDAY.
PRELIMINARY POINT TEMPS/POPS
PDT 62 44 63 42 / 70 60 40 100
ALW 60 47 62 45 / 80 80 60 100
PSC 57 43 63 42 / 80 30 30 90
YKM 54 37 58 37 / 100 60 70 90
HRI 59 44 63 43 / 70 40 40 90
ELN 50 34 52 33 / 100 70 70 100
RDM 59 36 58 34 / 80 60 50 90
LGD 59 40 57 40 / 90 70 60 100
GCD 60 41 57 41 / 90 60 40 100
DLS 58 45 60 45 / 100 90 90 100
PDT WATCHES/WARNINGS/ADVISORIES
OR...NONE.
WA...NONE.
SHORT TERM...95
LONG TERM....95
AVIATION...97
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