568
FXUS66 KOTX 202358
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
458 PM PDT SAT JUN 20 2026
KEY MESSAGES
- WARM TEMPERATURES AND DRY CONDITIONS CONTINUE. TUESDAY AND
WEDNESDAY NEXT WEEK WILL BE OUR WARMEST DAYS OVER THE NEXT
WEEK WITH HIGHS IN THE UPPER 80S TO MID 90S.
- DRY AND WINDY CONDITIONS IN CENTRAL WASHINGTON WILL CONTINUE
THROUGH SATURDAY EVENING, WITH LOCALLY BREEZY WINDS PERSISTING
INTO SUNDAY.
- WEATHER CHANGES ARRIVE LATE NEXT WEEK WITH COOLER
TEMPERATURES, BREEZY WINDS, AND A CHANCE OF SHOWERS FOR NEXT
WEEKEND
SYNOPSIS
DRY AND WINDY CONDITIONS IN CENTRAL WASHINGTON WILL CONTINUE
THROUGH SATURDAY EVENING, WITH LOCALLY BREEZY WINDS PERSISTING
INTO SUNDAY. LITTLE TO NO PRECIPITATION IS EXPECTED THROUGH THE
MIDDLE OF NEXT WEEK. WARMER TEMPERATURES ARE FORECAST FOR THE
EARLY TO MIDDLE PART OF NEXT WEEK BEFORE COOLER TEMPERATURES
AND A CHANCE OF SHOWERS ARRIVE BY NEXT WEEKEND.
DISCUSSION
TONIGHT AND SUNDAY: A DRY COLD FRONT DROPPING INTO THE REGION
FROM THE NORTHWEST WILL RESULT IN BREEZY TO LOCALLY WINDY
CONDITIONS FOR MUCH OF CENTRAL WASHINGTON THROUGH THIS EVENING
WHERE RED FLAG WARNINGS REMAIN IN PLACE. AS THE FRONT EXITS
TONIGHT PRESSURE GRADIENTS GRADUALLY RELAX LEADING TO DECREASING
WINDS. ON SUNDAY THE LOW RESPONSIBLE FOR THE DRY COLD FRONT
PASSAGE SHIFTS INTO SOUTHERN ALBERTA, WITH HIGH PRESSURE OFF THE
COAST. THIS PUTS THE INLAND NW IN NORTH-NORTHWEST FLOW BETWEEN
THE TWO FEATURES WITH DRY AIR PERSISTING OVER THE REGION, EXCEPT
FOR A 20 PERCENT CHANCE OF AFTERNOON SHOWERS OVER THE NORTH ID
PANHANDLE. THE NORTHERLY FLOW PATTERN WILL CONTINUE TO ELEVATED
WINDS DOWN THE OKANOGAN VALLEY WITH BREEZY WINDS AND LOW
HUMIDITY RESULT IN ELEVATED FIRE WEATHER CONDITIONS.
MONDAY THROUGH WEDNESDAY: THE OFFSHORE RIDGE MOVES EAST AND
FLATTENS ON MONDAY AND TUESDAY. THIS WILL ALLOW FOR WARMER
TEMPERATURES WITH HIGH TEMPERATURES MAINLY IN THE 80S TO LOW
90S. LATE TUESDAY INTO WEDNESDAY WEAK IMPULSES COMING THROUGH
THE RIDGE WILL NEED TO BE MONITORED AS STEEP TEMPERATURE LAPSE
RATES RESULT IN AN UNSTABLE ATMOSPHERE. CURRENTLY THE NBM
MAINTAINS A DRY FORECAST AND WITH DRY LOW LEVELS THE FORECAST
LEANS THIS WAY, BUT CAN NOT COMPLETELY RULE OUT ISOLATED SHOWER
OR THUNDERSTORM DEVELOPMENT OVER THE MOUNTAINS.
THURSDAY THROUGH SATURDAY: THERE IS A 90 PERCENT CHANCE OF
SIGNIFICANT WEATHER CHANGES BY NEXT WEEKEND. 70% OF THE MODEL
CLUSTERS SHOW AN UPPER TROUGH DROPPING DOWN INTO THE REGION,
20% SHOW SIGNIFICANT FLATTENING OF THE RIDGE, WHILE ONLY 10%
SHOW HIGH PRESSURE ONLY WEAKENING SLIGHTLY. THURSDAY IS LIKELY
TO STILL BE A WARM DAY AHEAD OF THE TROUGH. THEN THERE IS A
LARGE SPREAD IN POTENTIAL TEMPERATURES FRIDAY WITH SOME TIMING
DIFFERENCES WITH THE TROUGH BEFORE MORE SIGNIFICANT COOLING FOR
NEXT SATURDAY WITH HIGHS IN THE 70S, POSSIBLY EVEN SOME UPPER
60S. WITH THE TROUGH WILL COME BREEZY WINDS, AND A CHANCE FOR
SHOWERS. THERE IS ALSO A 20 PERCENT FOR THUNDERSTORMS FRIDAY AND
SATURDAY OVER THE NORTHERN MOUNTAINS. JW
AVIATION
00Z TAFS: VFR CONDITIONS EXPECTED THROUGH THE TAF PERIOD. GUSTY
WEST WINDS WILL PERSIST INTO THIS EVENING WITH GUSTS OF 15-25
KTS. OCCASIONAL STRONGER GUSTS UP TO 30-35 KTS WILL BE POSSIBLE AT
KOMK/KEAT. WINDS WILL DECREASE AFTER 03-06Z AS THE FRONT EXITS.
A BAND OF MID AND HIGH CLOUDS OVER SOUTHEAST WASHINGTON INTO
NORTH IDAHO WILL CONTINUE TRACKING EASTWARD OUT OF THE REGION
HEADING INTO TONIGHT.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: HIGH CONFIDENCE
IN VFR CONDITIONS AT ALL TERMINALS THROUGH THE FORECAST PERIOD.
MODERATE CONFIDENCE IN TIMING OF WINDS SUBSIDING.
-----------------------
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 53 82 54 83 53 87 / 0 0 0 0 0 0
COEUR D'ALENE 50 80 52 81 53 86 / 0 0 0 0 0 0
PULLMAN 48 79 49 81 50 87 / 0 0 0 0 0 0
LEWISTON 58 86 56 89 56 94 / 0 0 0 0 0 0
COLVILLE 43 82 44 85 49 88 / 0 0 0 0 0 0
SANDPOINT 48 78 49 80 51 84 / 0 10 0 0 0 0
KELLOGG 52 77 52 80 51 86 / 0 0 0 0 0 0
MOSES LAKE 59 87 58 89 56 93 / 0 0 0 0 0 0
WENATCHEE 60 86 61 88 63 92 / 0 0 0 0 0 0
OMAK 57 85 57 88 57 91 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...RED FLAG WARNING UNTIL 11 PM PDT THIS EVENING FOR FOOTHILLS OF
CENTRAL WASHINGTON CASCADES (ZONE 705)-WATERVILLE PLATEAU
(ZONE 706)-WESTERN COLUMBIA BASIN (ZONE 707).
RED FLAG WARNING UNTIL 11 PM PDT THIS EVENING FOR OKANOGAN
VALLEY (ZONE 703).
ID...NONE.
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