804
FXUS66 KOTX 310549
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
1049 PM PDT SAT MAY 30 2026
KEY MESSAGES
- DRIER CONDITIONS INTO EARLY NEXT WEEK, WITH A CHANCE OF
SHOWERS LIMITED TO MAINLY THE IDAHO PANHANDLE AND NORTHEAST
WASHINGTON.
- UNSETTLED CONDITIONS MID TO LATE NEXT WEEK WITH ANOTHER PAIR
OF SYSTEMS.
SYNOPSIS
DRIER AND COOLER CONDITIONS ARE EXPECTED OVER THE WEEKEND WITH
BREEZY CONDITIONS. TEMPERATURES WARM THROUGH THE WEEK WITH A
RETURN OF A CHANCE OF SHOWERS AND THUNDERSTORMS ON WEDNESDAY.
DISCUSSION
TODAY: TODAY IS COOL WITH TEMPERATURES IN THE LOW 60S TO MID 70S
WITH BREEZY WINDS IN THE CASCADE GAPS. THE SURFACE PRESSURE
GRADIENTS FOR PORTLAND TO KALISPELL AND SEATTLE TO WENATCHEE HAVE
STEADILY INCREASED THROUGH THE MORNING AND EARLY AFTERNOON THANKS TO
STRENGTHENING SURFACE HIGH PRESSURE WEST OF THE CASCADES. THE WIND
SPEED AT WENATCHEE HAS SLOWLY DECREASED THROUGH THE MORNING AND
EARLY AFTERNOON THANKS TO COUNTERING UPVALLEY FLOW, BUT THAT WILL
CHANGE THIS EVENING AS LOCAL FLOW REVERSES DOWNSLOPE ALIGNING WITH
THE PRESSURE GRADIENT. THERE IS A 50-80% CHANCE FOR 30+ MPH GUSTS
THROUGH 2 AM AT WENATCHEE, ENTIAT, CHELAN, GEORGE, AND EPHRATA.
SUNDAY THROUGH TUESDAY: A WARMING TREND WILL COMMENCE TO START
SUNDAY HEIGHT RISES FROM A BLOCKING HIGH IN WESTERN BRITISH COLUMBIA
WILL LEAD TO WARMING TEMPERATURES INTO THE 70S AND 80S BY TUESDAY. A
WEAK UPPER LOW LOITERING OVER MT WILL BRING UNSETTLED CONDITIONS TO
THE NORTHERN ID PANHANDLE AND AT TIMES NORTHEAST WASHINGTON THROUGH
TUESDAY. THE BEST CHANCE FOR SHOWERS AND PERHAPS A LIGHTNING STRIKE
OR TWO WOULD BE MONDAY AFTERNOON AS A VORT MAX PIVOTS WEST FROM
WESTERN ALBERTA INTO SOUTHEAST BC AND EVENTUALLY NORTH ID. FROM
SUNDAY AFTERNOON TO TUESDAY AFTERNOON THERE IS A 10-20% CHANCE FOR
AN ADDITIONAL QUARTER INCH OF RAIN AT KELLOGG AND SANDPOINT. THOSE
CHANCES INCREASE TO 40% AT BONNERS FERRY.
WEDNESDAY THROUGH SATURDAY: THE NEXT WAVE ARRIVES WEDNESDAY WHICH
WILL BRING MORE CHANCES FOR SHOWERS AND ISOLATED THUNDERSTORMS.
FORECAST INSTABILITY LOOKS FAIRLY UNIMPRESSIVE AROUND 100-300 J/KG
SO NOT EXPECTING SEVERE WEATHER AT THIS TIME. BEHIND THIS WAVE,
MODELS ARE IN GENERALLY GOOD AGREEMENT OF STRENGTHENING ZONAL FLOW
AHEAD OF ANOTHER TROUGH. THIS TROUGH WILL BRING ANOTHER ROUND OF
UNSETTLED CONDITIONS LATE NEXT WEEK. DB
AVIATION
06Z TAFS: VFR CONDITIONS WILL PREVAIL WITH BREEZY WESTERLY
WINDS. WINDS ACROSS THE CASCADE GAPS INTO THE COLUMBIA BASIN
HAVE RELAXED. THEY'LL PICK UP AGAIN AROUND 10-15Z, THOUGH
THEY'LL BE LOWER THIS TIME, 10-15KTS. WINDS WILL GRADUALLY
DECREASE SUNDAY AFTERNOON.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
HIGH CONFIDENCE IN VFR CONDITIONS FOR ALL TAF SITES THROUGH THE
WEEKEND.
-----------------------
CONFIDENCE DESCRIPTORS:
LOW - LESS THAN A 30 PERCENT CHANCE
MODERATE - 30 TO 70 PERCENT CHANCE
HIGH - GREATER THAN A 70 PERCENT CHANCE
FOR ADDITIONAL PROBABILISTIC INFORMATION FOR NWS SPOKANE AIRPORTS,
PLEASE REFER TO THE AVIATION DASHBOARD ON OUR WEBPAGE:
HTTPS:/WWW.WEATHER.GOV/OTX/AVNDASHBOARD
PRELIMINARY POINT TEMPS/POPS
SPOKANE 45 71 47 70 46 73 / 0 0 0 10 0 0
COEUR D'ALENE 46 67 48 67 47 71 / 0 0 10 20 10 0
PULLMAN 41 65 43 68 44 72 / 0 0 0 10 0 0
LEWISTON 47 72 49 75 51 79 / 0 0 0 0 0 0
COLVILLE 41 73 42 70 40 74 / 0 0 10 40 10 0
SANDPOINT 45 65 46 64 45 68 / 0 10 20 50 20 20
KELLOGG 45 64 46 67 46 71 / 0 0 10 20 10 10
MOSES LAKE 42 76 47 78 49 81 / 0 0 0 0 0 0
WENATCHEE 48 76 53 78 57 81 / 0 0 0 0 0 0
OMAK 46 76 50 75 50 78 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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