488
FXUS66 KOTX 140734
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
1234 AM PDT TUE OCT 14 2025
KEY MESSAGES
- COLDER OVERNIGHT LOW TEMPERATURES MONDAY NIGHT THROUGH
WEDNESDAY NIGHT.
- UNSETTLED WEATHER RETURNS THIS WEEKEND.
SYNOPSIS
DRY WEATHER WITH FALL LIKE TEMPERATURES ARE EXPECTED THROUGH
THURSDAY WITH COLDER OVERNIGHT LOWS. WET WEATHER AND BREEZY
WINDS LOOKS TO RETURN NEXT WEEKEND.
DISCUSSION
TODAY THROUGH THURSDAY: THE CLOSED LOW OVER CALIFORNIA TODAY AND A
POSITIVELY TILTED RIDGE NOSING INTO BRITISH COLUMBIA WILL PROVIDE
A DRY NORTH-NORTHEAST FLOW OVER THE INLAND NW. THE PATTERN CHANGES
LITTLE ON WEDNESDAY AS THE LOW SLOWLY MOVES EAST WELL SOUTH OF OUR
AREA. ON THURSDAY THE RIDGE AXIS MIGRATES EAST AND BECOMES
CENTERED OVER THE EASTERN WASHINGTON AND NORTH IDAHO. A DRY AIR
MASS WITH PRECIPITABLE WATER 40-70% OF NORMAL WILL PROMOTE SOME
COLD OVERNIGHT LOWS WITH FREEZING TEMPERATURES FOR MOST
VALLEYS. WITH THE MOSES LAKE AREA STILL WITHIN ITS
CLIMATOLOGICAL GROWING SEASON A FROST ADVISORY HAS BEEN ISSUED
FROM 12 AM TO 9 AM FOR EACH NIGHT THROUGH WEDNESDAY NIGHT.
THURSDAY NIGHT THROUGH MONDAY: ENSEMBLES CONTINUE TO COME INTO
BETTER AGREEMENT TOWARD NEXT WEEKEND. ON FRIDAY A SHORT WAVE
TROUGH PASSES MAINLY NORTH OF THE AREA WITH A CHANCE OF SHOWERS
LIMITED TO THE CASCADE CREST AND ID PANHANDLE. ON SATURDAY A
SHORT WAVE RIDGE MOVES OVER THE AREA AHEAD OF A STRONGER SYSTEM
DEVELOPING OFF THE COAST OF BRITISH COLUMBIA. THUS PRECIPITATION
CHANCES REMAIN LOW, BUT THIS CHANGES HEADING INTO SATURDAY NIGHT
AND SUNDAY AS A STRONGER FRONTAL SYSTEM MOVES THROUGH. THIS WILL
BRING INCREASED CHANCES FOR MORE WIDESPREAD RAIN AND HIGH MOUNTAIN
SNOW. WASHINGTON PASS HAS A 65% CHANCE OF SEEING AT LEAST 2
INCHES ON SUNDAY, BUT ODDS ARE LOWER FOR OTHER PASSES GIVEN RATHER
HIGH SNOW LEVELS AROUND 5000-6000 FEET. ON THE BACK SIDE OF THIS
SYSTEM SNOW LEVELS DROP TOWARDS 3500-4500 FEET HEADING INTO
MONDAY. ALTHOUGH CURRENTLY MODELS SHOW ONLY LIGHT QPF AMOUNTS BUT
SOMETHING THAT WILL BE MONITORED. BREEZY WINDS ARE ALSO EXPECTED
WITH THIS FRONTAL SYSTEM. JW
AVIATION
06Z TAFS: A NORTH TO NORTHEAST PRESSURE GRADIENT WILL CONTINUE
INTO TUESDAY, ALTHOUGH WEAKER COMPARED TO MONDAY WITH SUSTAINED
WINDS GENERALLY RANGING FROM 5-13 KTS. DRIER AIR WILL CONTINUE
TO MOVE IN, LEADING TO CLEARING SKIES BY TUESDAY MORNING. MID
LEVEL CLOUDS WILL INCREASE OVER SE WASHINGTON AND THE LEWISTON
AREA TUESDAY AFTERNOON AND EVENING.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: HIGH CONFIDENCE
IN VFR CONDITIONS. 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:/WEATHER.GOV/OTX/AVNDASHBOARD
PRELIMINARY POINT TEMPS/POPS
SPOKANE 56 32 59 31 59 35 / 0 0 0 0 0 0
COEUR D'ALENE 54 32 57 33 57 35 / 0 0 0 0 0 0
PULLMAN 54 30 54 30 57 35 / 0 0 0 0 0 0
LEWISTON 58 39 60 38 62 41 / 0 0 0 0 0 0
COLVILLE 56 20 59 22 58 23 / 0 0 0 0 0 0
SANDPOINT 52 29 57 29 55 31 / 0 0 0 0 0 0
KELLOGG 55 35 57 36 57 38 / 0 0 10 10 0 0
MOSES LAKE 59 29 62 30 61 35 / 0 0 0 0 0 0
WENATCHEE 58 37 61 41 62 46 / 0 0 0 0 0 0
OMAK 59 32 62 35 62 37 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...FROST ADVISORY UNTIL 9 AM PDT THURSDAY FOR MOSES LAKE
AREA.
ID...NONE.
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