687
FXUS66 KOTX 071755
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
1055 AM PDT MON SEP 7 2026
KEY MESSAGES
- COOL AND SHOWERY WEATHER EXPECTED THROUGH MONDAY.
- A WARMING AND DRYING TREND RETURNS AROUND THE MIDDLE OF THE
WEEK.
SYNOPSIS
ACTIVE WEATHER STICKS AROUND FOR LABOR DAY WITH COOL AND SHOWERY
WEATHER ACROSS NORTHEAST WASHINGTON AND NORTH IDAHO. A WARMING
AND DRYING TREND COMMENCES AROUND THE MIDDLE OF THE WEEK AS
HIGHER PRESSURE RETURNS TO THE REGION.
DISCUSSION
TODAY AND TONIGHT: THE LOW IS CURRENTLY POSITIONED OVER CENTRAL
WASHINGTON AND WILL CONTINUE TO SLIDE EAST THROUGH MONDAY. FOR
MONDAY, PRECIP CHANCES WILL DECREASE THROUGH DAY AS DRIER AIR
FILLS IN BEHIND THE THE EXITING SYSTEM FROM WEST TO EAST. PRECIP
CHANCES WILL BE HIGHEST OVER THE IDAHO PANHANDLE AND NORTHEAST
WASHINGTON. 24-HOUR 25-75 PERCENT PROBABILITIES FOR MONDAY HAVE
THE IDAHO PANHANDLE RANGING FROM 0.3-1 INCH. EXTREME EASTERN
WASHINGTON, INCLUDING SPOKANE AND PULLMAN, RANGES FROM 0-0.4
INCHES. THE CENTRAL BASIN AND CASCADES HAS ONLY REACHES A FEW
HUNDREDTHS. WINDS WILL INCREASE SOME MONDAY. WEST WINDS OF 10-15
MPH WITH GUSTS OF 15 TO 25 MPH WILL BE POSSIBLE, ESPECIALLY THE
UPPER COLUMBIA BASIN, PALOUSE AND THE SPOKANE/CDA AREA. HIGHS
MONDAY WILL BE IN THE UPPER 50S AND 60S OVER THE EAST THIRD OF
WA AND ID, WHILE CENTRAL WA WILL SEE UPPER 60S AND 70S.
TUESDAY THROUGH THURSDAY: THE ENSEMBLES ARE IN DECENT AGREEMENT
FOR THE EXTENDED. A FLAT RIDGE PATTERN WILL SET UP OVER THE
REGION AS THE LOW EXITS. IT WILL LEAD TO DRY, WARMING TREND
THROUGH THE END OF THE WEEK. WINDS WILL BE MAIN CONCERN
WEDNESDAY AND THURSDAY. FOR WEDNESDAY, SOUTH TO NORTH WINDS WILL
BRING BREEZY CONDITIONS ACROSS THE WATERVILLE PLATEAU AND
OKANOGAN VALLEY. SUSTAINED WINDS WILL BE IN THE TEENS WITH GUSTS
UP TO 25 MPH. FOR THURSDAY, THE WINDS SPREAD ACROSS THE BASIN
WITH SUSTAINED IN THE TEENS WITH GUSTS UP TO 30 MPH. LOCALLY
STRONGER WINDS ARE POSSIBLE OVER THE WATERVILLE PLATEAU WITH
GUSTS UP TO 40 MPH. BLOWING DUST COULD BE A CONCERN IN THE AREA.
PRECIP CHANCES WILL BE LESS THAN 10 PERCENT THROUGH THURSDAY.
HIGHS WILL BE IN THE 70S FOR TUESDAY AND CLIMB INTO THE UPPER
70S AND 80S FOR WEDNESDAY AND THURSDAY. OVERNIGHT LOWS WILL BE
IN THE 40S TO LOW 50S.
FRIDAY AND SATURDAY: ANOTHER TROUGH WILL DROP IN FROM BC FRIDAY
AS REMNANTS OF TROPICAL SYSTEM BEGIN TO PRESS MOISTURE INTO THE
PACIFIC NORTHWEST. IT IS LEADING TO INCREASING PRECIP CHANCES
GOING INTO THE WEEKEND. NBM THUNDERSTORM POTENTIAL IS AROUND
10-20 PERCENT ACROSS THE INLAND NORTHWEST WITH HIGHEST PERCENTS
OVER NORTHEAST WA AND IDAHO PANHANDLE LATE FRIDAY AND SATURDAY.
IT IS TOO EARLY TO HAVE MUCH CONFIDENCE. HIGHS WILL TREND COOLER
FOR THE WEEKEND WITH UPPER 60S AND 70S EXPECTED. LOWS EXPECTED
TO BE IN THE UPPER 30S AND 40S. /JDC
AVIATION
18Z TAFS: A SLOW MOVING WEATHER SYSTEM WILL ALLOW RAIN SHOWERS
TO CONTINUE ACROSS NORTHEAST WASHINGTON INTO THE IDAHO PANHANDLE
THROUGH TUESDAY MORNING INCLUDING KGEG/KSFF/KCOE. THERE IS ALSO
A 20 PERCENT CHANCE OF AFTERNOON THUNDERSTORMS TODAY OVER THE
IDAHO PANHANDLE AND FAR NE WASHINGTON. MVFR CIGS AND LOCALIZED
IFR CONDITIONS THIS MORNING WILL BECOME MAINLY VFR AFTER 20-21Z
FOR KGEG/KSFF/KCOE AS WESTERLY BOUNDARY LAYER WINDS ADVECT DRIER
AIR IN THE BOUNDARY LAYER OVER CENTRAL WA INTO THESE AREAS.
ALSO SEEING MARGINAL MVFR AT KPUW BUT CIGS WILL BE RISING FOR
THIS AREA AS WELL. OVER THE NORTH ID PANHANDLE AROUND SANDPOINT
AND BONNERS FERRY CONTINUED PRECIPITATION WILL KEEP MVFR TO
LOCAL IFR CONDITIONS PERSISTING INTO TUESDAY MORNING. CONTINUED
DOWNSLOPE NORTHWEST WINDS OFF THE CASCADES INTO KEAT/KMWH WILL
ALLOW VFR CONDITIONS TO CONTINUE.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: MODERATE
CONFIDENCE WITH TIMING OF IMPROVEMENT TO VFR AT KGEG/KSFF/KCOE.
HIGH CONFIDENCE IN VFR CONDITIONS THROUGH THE TAF PERIOD AT
KEAT/KMWH/KLWS. JW
-----------------------
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 68 49 72 48 78 51 / 60 20 10 0 0 0
COEUR D'ALENE 63 48 70 47 77 50 / 80 30 10 0 0 0
PULLMAN 64 42 69 43 77 47 / 40 0 0 0 0 0
LEWISTON 71 50 76 52 83 56 / 40 10 0 0 0 0
COLVILLE 69 42 75 41 80 44 / 30 30 10 0 0 0
SANDPOINT 59 44 67 43 74 46 / 80 60 30 0 0 0
KELLOGG 58 47 66 46 74 49 / 100 30 20 0 0 0
MOSES LAKE 75 47 77 48 83 52 / 10 10 0 0 0 0
WENATCHEE 76 53 79 57 85 61 / 0 0 0 0 0 0
OMAK 76 50 79 51 83 55 / 10 10 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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