814
FXUS66 KOTX 011644
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
944 AM PDT THU OCT 1 2026
KEY MESSAGES
- TEMPERATURES GRADUALLY TREND WARMER HEADING INTO THE WEEKEND.
AFTERNOON HIGHS PEAK IN THE 70S TO LOW 80S SATURDAY THROUGH
MONDAY.
- MAINLY DRY CONDITIONS ARE FORECAST WITH THE EXCEPTION OF
SHOWER CHANCES FOR THE NORTH CASCADES THURSDAY AND FRIDAY.
SYNOPSIS
TEMPERATURES WILL TREND WARMER THROUGH THE END OF THE WEEK,
RISING INTO THE 70S AND LOW 80S BY THE WEEKEND. CONDITIONS ARE
LOOKING BENIGN THROUGH THE FIRST WEEK OF OCTOBER WITH MAINLY DRY
CONDITIONS AND LIGHT WINDS.
DISCUSSION
TODAY THROUGH FRIDAY: ZONAL WESTERLY FLOW PREVAILS ACROSS THE
INLAND NORTHWEST THROUGH FRIDAY, MAINTAINING THE QUIET,
UNIMPACTFUL WEATHER PATTERN. A WEAK WAVE EMBEDDED IN THE ZONAL
FLOW WILL BRING PASSING HIGH CLOUDS REGIONWIDE TODAY AND LOW
CHANCES FOR SHOWERS ACROSS THE NORTH CASCADES. ANY SHOWERS THAT
DEVELOP OVER THE NORTH CASCADES WILL BE VERY LIGHT WITH CHANCES
FOR MEASURABLE PRECIPITATION (GREATER THAN 0.01 INCHES) RANGING
FROM 20 TO 30 PERCENT. ELSEWHERE, CONDITIONS WILL REMAIN DRY.
TEMPERATURES TODAY WILL PEAK IN THE MID 60S TO LOW 70S, THEN
WILL WARM BY AROUND 5 DEGREES FOR FRIDAY, RISING INTO THE UPPER
60S TO UPPER 70S. WHILE AFTERNOON TEMPERATURES WILL BE WARM,
MORNINGS WILL STILL FEEL CRISP AND FALL-LIKE THANKS TO
RADIATIONAL COOLING UNDER MOSTLY CLEAR SKIES AND LIGHT WINDS.
LOW TEMPERATURES WILL RANGE FROM THE UPPER 30S ACROSS THE
SHELTERED NORTHERN VALLEYS TO THE LOW 50S FOR THE WARMEST SPOTS
FURTHER SOUTH INCLUDING WENATCHEE AND LEWISTON.
SATURDAY THROUGH MONDAY: AN UPPER LEVEL RIDGE BUILDS OVER THE
WEEKEND, AND AS THE RIDGE BUILDS, HIGH TEMPERATURES WILL
CONTINUE TO CLIMB. AFTERNOON HIGHS WILL PEAK SATURDAY THROUGH
MONDAY IN THE MID 70S TO LOW 80S, 10 TO 15 DEGREES ABOVE
CLIMATOLOGICAL NORMALS FOR EARLY OCTOBER.
TUESDAY AND WEDNESDAY: ENSEMBLES GENERALLY AGREE ON A LOW
PRESSURE SYSTEM DROPPING INTO THE GULF OF ALASKA BY THE MIDDLE
OF NEXT WEEK, FLATTENING THE UPPER-LEVEL RIDGE ACROSS THE INLAND
NORTHWEST AND TRANSITIONING THE FLOW PATTERN BACK TO A ZONAL
REGIME. INCREASED MOISTURE MOVING IN ALOFT WILL BRING SOME
CLOUDS OVER THE NORTHERN MOUNTAINS, BUT THE FORECAST REMAINS
DRY. HIGH TEMPERATURES WILL COOL SLIGHTLY, RETURNING TO THE LOW
TO UPPER 70S ACROSS THE LOWER ELEVATIONS. /FEWKES
AVIATION
18Z TAFS: HIGH CLOUDS WILL PERSIST REGIONWIDE THROUGH THE
AFTERNOON AND EVENING, CLEARING OVERNIGHT INTO FRIDAY MORNING.
WINDS WILL BE LIGHT (LESS THAN 10 KTS) THROUGH THE 24 HOUR
PERIOD.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: HIGH CONFIDENCE
FOR VFR CONDITIONS THROUGH THE PERIOD.
-----------------------
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 74 45 74 45 78 / 0 0 0 0 0 0
COEUR D'ALENE 44 72 45 74 45 78 / 0 0 0 0 0 0
PULLMAN 45 73 46 76 46 80 / 0 0 0 0 0 0
LEWISTON 51 79 51 79 52 82 / 0 0 0 0 0 0
COLVILLE 38 73 38 76 39 79 / 10 0 0 0 0 0
SANDPOINT 41 69 41 71 42 75 / 10 0 0 0 0 0
KELLOGG 46 71 45 73 46 79 / 0 0 0 0 0 0
MOSES LAKE 45 77 45 78 46 81 / 0 0 0 0 0 0
WENATCHEE 52 77 53 75 54 78 / 0 0 0 0 0 0
OMAK 43 75 45 76 46 79 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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