644
FXUS66 KPDT 101149
AFDPDT
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
449 AM PDT FRI APR 10 2026
KEY MESSAGES
- CHANCES OF THUNDERSTORMS CONTINUE THROUGH SUNDAY.
- COOLING TREND WILL PROGRESS THROUGH NEXT WEEK.
- SECONDARY WET PATTERN GOING INTO MID-NEXT WEEK.
DISCUSSION
RADAR DEPICTS DRY CONDITIONS, WITH SATELLITE SHOWING AN UPPER
LEVEL LOW OFF CALIFORNIA THAT WILL CONTINUE TO PUSH EAST. BEHIND
THAT, A SECONDARY UPPER LOW WILL PUSH INLAND AROUND THE EARLY
SUNDAY MORNING TIMEFRAME. THIS WILL CONTINUE TO BRING
ACTIVE/SEMI-ACTIVE WEATHER IN THE PICTURE FOR THE NEXT SEVERAL
DAYS. SUFFICIENT CAPE WILL DEVELOP IN THE LATE FRIDAY AFTERNOON
HOURS, ALLOWING FOR THUNDERSTORM ACTIVITY TO EXPAND FRIDAY-
SATURDAY. AREAS MOSTLY CONCERNED FOR THUNDERSTORM CHANCES
(15-25%) WILL BE ALONG CENTRAL OREGON THROUGH THE WALLOWA'S WITH
THE MAIN DEVELOPMENT HOURS AROUND 2-6PM.
SATURDAY BECOMES A BIT UNCERTAIN REGARDING THUNDERSTORM CHANCES.
ALTHOUGH IT LOOKS LIKE THE AERIAL COVERAGE NOW INCLUDES THE
FOOTHILLS OF THE BLUES, I'M UNCERTAIN HOW WIDESPREAD
THUNDERSTORMS WILL DEVELOP DUE TO ABUNDANT CLOUD COVERAGE OVER
THE AREA. AREAS WITH MORE BREAKS IN THE CLOUDS (OR HAVE MORE
TIME TO HEAT FROM THE SUN) WILL SEE GREATER CHANCES OF
WIDESPREAD THUNDERSTORMS TO DEVELOP. IT CAN'T BE RULED OUT THAT
SOME OF THESE STORMS CAN PRODUCE PEA TO PENNY SIZE HAIL IN THE
STRONGEST DEVELOPING CELLS WITH SOME EMBEDDED GUSTY WINDS.
BY MONDAY, THINGS BEGIN TO CALM DOWN WITH DRIER CONDITIONS
ENTERING THE PICTURE AS THE TROUGH PROGRESSES TO THE EAST WITH A
MORE ZONAL PATTERN MOVING INTO THE REGION. OUR COOLING TREND
WILL CONTINUE THROUGH MID-NEXT WEEK (75-95% CHANCE) AS A SECOND
LOW PRESSURE SYSTEM DROPS THROUGH THE GULF OF ALASKA/BRITISH
COLUMBIA AREA BY THE WEDNESDAY TIMEFRAME THAT WILL RESET
ANOTHER VALLEY RAIN/MOUNTAIN SNOW EVENT.
AVIATION /06Z TAFS THROUGH 06Z SATURDAY/
VFR CONDITIONS PREVAIL, WITH THE EXCEPTION OF SOME TEMPORARY
OBSCURITY IN BDN WITH 2-5SM OF HAZE. CONDITIONS WILL IMPROVE
LATER IN THE NIGHT. LIGHT WINDS WILL REMAIN WITH OCCASIONAL
GUSTY WINDS WITH SOME HEAVY SHOWERS DEVELOPING TOMORROW
MORNING TOWARDS THE END OF THE PERIOD. OTHERWISE, NOT EXPECTING
ANY SIGNIFICANT HIGHLIGHTS OTHER THAN SOME SCT025 CLOUDS WITH A
5-15% CHANCE THEY COULD TURN INTO A BKN/OVC DECK.
PRELIMINARY POINT TEMPS/POPS
PDT 66 46 67 42 / 20 30 60 30
ALW 67 49 67 46 / 20 40 70 30
PSC 72 48 72 45 / 10 30 40 20
YKM 70 46 68 42 / 10 30 30 10
HRI 69 46 70 44 / 10 30 40 20
ELN 67 44 62 40 / 10 30 30 10
RDM 66 40 61 37 / 50 70 60 50
LGD 69 44 63 42 / 40 50 80 60
GCD 65 42 62 40 / 70 60 70 60
DLS 70 50 67 47 / 10 50 40 20
PDT WATCHES/WARNINGS/ADVISORIES
WA...NONE.
OR...NONE.
DISCUSSION...95
AVIATION...95
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