007
FXUS66 KPDT 060549
AFDPDT
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1049 PM PDT TUE AUG 5 2025
UPDATED AVIATION DISCUSSION
AVIATION...06Z TAFS
VFR CONDITIONS CURRENTLY ACROSS ALL SITES,
WHICH WILL STAY THE COURSE THROUGH THE PERIOD. THE ONLY EXCEPTION
WILL BE FOR KDLS, WHICH IS EXPECTED TO EXHIBIT MVFR CONDITIONS DUE
TO REDUCED OVC CEILINGS OF 3KFT EARLY IN THE AFTERNOON. -RA TO
IMPACT KDLS/KYKM EARLY IN THE MORNING AND EXTEND THROUGH THE
AFTERNOON. MID-LEVEL CLOUDS ACROSS ALL SITES, LOWERING TO 5KFT
WEDNESDAY EVENING. BREEZY LATE MORNING AND AFTERNOON SUSTAINED WINDS
OF 10-15 KTS WITH GUSTS OF UP TO 25 KTS, WITH HIGHEST WINDS AT
KBDN/KRDM. 75
PREV DISCUSSION... /ISSUED 152 PM PDT TUE AUG 5 2025/
DISCUSSION...CURRENT CONDITIONS SHOW CLOUDS CLEARING OUT IN THE
EARLY AFTERNOON. TEMPERATURES WARMED UP A LITTLE BIT THANKS TO THE
CLEARING PATTERN OVER THE REGION. RH LEVELS IN THE WARM SPRINGS
RESERVATION ARE LOWER THAN PREVIOUSLY THOUGHT WITH WINDS REACHING
CRITERIA. GIVEN THAT, WE ISSUED A RED FLAG WARNING FOR THE ORZ703
UNTIL 8PM THIS EVENING. NOT EXPECTING ANYMORE RED FLAGS FOR TODAY,
HOWEVER THE BASIN (ORZ691) IS INCHING NEAR RED FLAG STATUS.
LOCALIZED POCKETS MIGHT REACH CRITERIA, BUT NOTHING WIDESPREAD
ENOUGH TO ISSUE RFW'S.
FIRE WEATHER CONDITIONS ARE NOT AS CONDUCIVE THROUGH THE MIDDLE OF
THE WEEK, GOING CLOSE TO THE WEEKEND. EXPECT THE NEXT COUPLE OF
DAYS TO BE MORE CLOUDY, COOLER, AND RAINIER AS A SHORTWAVE DIGS
DOWN FROM THE GULF OF ALASKA/BRITISH COLUMBIA SHORELINE. THIS
PATTERN WILL BRING MAINLY STRATIFORM RAIN SHOWERS THROUGH THE
BASIN AND MUCH OF THE MOUNTAIN ZONES. CHANCES OF SOME SCATTERED
THUNDERSTORMS (15-25% CHANCE) GO UP FOR PARTS OF THE WA CASCADES,
WITH PEAK STORM INTENSITY IN THE EARLY TO MID AFTERNOON HOURS. THE
TROUGH WILL BECOME MORE AMPLIFIED GOING INTO THURSDAY, SPREADING
RAIN CHANCES FOR MUCH OF THE BASIN, KITTITAS VALLEY, AND LARGE
PORTIONS OF THE EASTERN MOUNTAINS. LARGEST CAPE VALUES, ACCORDING
TO THE NBM, ARE LOCATED IN WALLOWA COUNTY AND PORTIONS OF EASTERN
WASHINGTON (200-400 J/KG). THIS IS WHERE THE STRONGEST STORMS ARE
EXPECTED GOING THROUGH THURSDAY. CAN'T RULE OUT THE POSSIBILITY
THAT SOME OF THESE STORMS PRODUCE PEA SIZE HAIL WITH GUSTY OUTFLOW
WINDS.
THE PATTERN WILL FLIP TO A DRY, WARMER SCENARIO AS RIDGING RE-
ENTERS THE PICTURE. HIGH TEMPERATURES WILL GRADUALLY WARM INTO
THE LOW TO MID 90S FROM SATURDAY TO TUESDAY. A LITTLE UNCERTAIN
ABOUT EXACT DETAILS OF HOW WARM IT WILL GET DUE TO UNCERTAINTY OF
THE STRENGTH OF THE RIDGE. CLUSTERS FORM A DISAGREEMENT ON THIS
ISSUE WITH 47% BRINGING ON A STRONGER RIDGE ALONG WITH WARMER
TEMPERATURES, WHILE 21% ACTUALLY BRING COOLER TEMPERATURES. FIRE
WEATHER CONCERNS RETURN REGARDLESS OVER THE WEEKEND INTO EARLY
NEXT WEEK, AS DRY AND BREEZY CONDITIONS MAKE OUR SOUTHERN FIRE
WEATHER ZONES MORE SUSCEPTIBLE TO ELEVATED FIRE CONCERNS.
PRELIMINARY POINT TEMPS/POPS
PDT 60 81 59 79 / 0 10 20 30
ALW 65 81 62 78 / 0 10 20 40
PSC 62 84 59 81 / 0 20 20 20
YKM 63 80 54 78 / 20 50 30 20
HRI 63 84 61 82 / 0 10 20 20
ELN 60 76 53 73 / 20 60 40 20
RDM 51 80 49 77 / 0 10 10 10
LGD 54 79 56 75 / 0 10 20 40
GCD 53 81 54 78 / 0 10 10 20
DLS 64 79 61 77 / 20 60 30 10
PDT WATCHES/WARNINGS/ADVISORIES
OR...NONE.
WA...NONE.
SHORT TERM...95
LONG TERM....95
AVIATION...75
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