108
FXUS66 KOTX 211810
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
1110 AM PDT SUN JUN 21 2026
KEY MESSAGES
- WARM TEMPERATURES AND DRY WEATHER CONTINUES. TUESDAY AND
WEDNESDAY WILL BE OUR WARMEST DAYS OVER THE NEXT WEEK WITH
HIGHS IN THE UPPER 80S TO MID 90S.
- LOCALLY BREEZY WINDS WILL PERSIST ON SUNDAY DOWN THE OKANOGAN
VALLEY AND ACROSS CENTRAL WA.
- WEATHER CHANGES ARRIVE LATE NEXT WEEK WITH COOLER
TEMPERATURES, BREEZY WINDS, AND A CHANCE OF SHOWERS FOR NEXT
WEEKEND.
SYNOPSIS
A WARM AND DRY PATTERN WILL LAST INTO MID-WEEK AS A RIDGE OF
HIGH PRESSURE SHIFTS INLAND OVER THE REGION. LOCALLY BREEZY
WINDS WILL PERSIST INTO SUNDAY ACROSS CENTRAL WA. THE PATTERN
SHIFTS TOWARD THE END OF THE WEEK AND INTO NEXT WEEKEND AS A
TROUGH USHERS IN COOLER TEMPERATURES AND A CHANCE OF SHOWERS.
DISCUSSION
SUNDAY: BREEZY NORTH/NORTHWESTERLY WINDS WILL LINGER INTO
SUNDAY DOWN THE OKANOGAN VALLEY AND ACROSS CENTRAL WASHINGTON AS
A RIDGE OF HIGH PRESSURE NUDGES ONSHORE, PLACING THE REGION IN A
NORTHERLY FLOW PATTERN. THE BREEZY WINDS COMBINED WITH HUMIDITY
VALUES DROPPING INTO THE TEENS SUNDAY AFTERNOON WILL RESULT IN
CONTINUED ELEVATED FIRE WEATHER CONDITIONS.
MONDAY THROUGH WEDNESDAY: THE RIDGE AXIS CONTINUES TO SHIFT
EAST OVER THE REGION MONDAY THROUGH WEDNESDAY, ALLOWING
TEMPERATURES TO WARM INTO THE UPPER 80S TO MID 90S BY MID WEEK.
LATE TUESDAY INTO WEDNESDAY, WEAK IMPULSES RIPPLING THROUGH THE
RIDGE WILL NEED TO BE MONITORED. THE NBM CONTINUES TO KEEP THE
FORECAST DRY, BUT AN ISOLATED SHOWER OR THUNDERSTORM ISN'T
OUTSIDE THE REALM OF POSSIBILITY AS THESE DISTURBANCES MOVE
THROUGH AN UNSTABLE ATMOSPHERE WITH STEEP LAPSE RATES.
THURSDAY THROUGH SATURDAY: ENSEMBLES CONTINUE TO HONE IN ON A
SIGNIFICANT PATTERN CHANGE TO CLOSE OUT THE WEEK WITH NEARLY
100% OF MODEL CLUSTERS NOW DEPICTING AN UPPER LEVEL TROUGH
DROPPING DOWN INTO THE REGION BY NEXT WEEKEND. DIFFERENCES
REMAIN ON THE TIMING AND STRENGTH OF THIS TROUGH, BUT THERE IS
HIGH CONFIDENCE ON A SHIFT TO A TROUGHING PATTERN OF SOME SORT.
THURSDAY WILL LIKELY STAY WARM AHEAD OF THE TROUGH WITH HIGH
TEMPERATURES ONLY 3-5 DEGREES COOLER THAN WEDNESDAY. HEADING
INTO FRIDAY, THERE IS SIGNIFICANT SPREAD IN THE TEMPERATURE
FORECAST DUE TO UNCERTAINTY SURROUNDING THE TIMING OF THE
TROUGH'S ARRIVAL. BY SATURDAY, MOST MODELS SHOW A NEARLY 20
DEGREE DROP IN TEMPERATURES COMPARED TO THE UPPER 80S TO MID 90S
FORECAST ON WEDNESDAY! THE CURRENT TEMPERATURE FORECAST FOR
SATURDAY HAS HIGHS RANGING FROM THE UPPER 60S TO MID 70S. GUSTY
WINDS ARE INEVITABLE WITH SUCH A DRAMATIC COOLDOWN, SO EXPECT A
WINDY DAY OR TWO TOWARD THE END OF THE WEEK. IN ADDITION TO
COOLER TEMPERATURES AND GUSTY WINDS, THIS SYSTEM WILL ALSO BRING
CHANCES FOR SHOWERS AND THUNDERSTORMS. STAY TUNED FOR MORE INFO
IN THE COMING DAYS! /FEWKES
AVIATION
18Z TAFS: CONDITIONS AT REGIONAL AIR FIELDS WILL CONTINUE AT VFR
LEVELS FOR THE NEXT 24 HOURS. BREEZY NORTH WINDS WILL PERSIST
DOWN THE OKANOGAN VALLEY WITH LOCAL GUSTS TO 20-25 KNOTS THROUGH
SUNDAY EVENING.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: CONFIDENCE
REMAINS HIGH FOR VFR CONDITIONS AT ALL TERMINALS THROUGH THE
FORECAST 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 54 84 52 85 55 89 / 0 0 0 0 0 0
COEUR D'ALENE 52 82 53 85 56 88 / 0 0 0 0 0 0
PULLMAN 49 81 50 84 52 87 / 0 0 0 0 0 0
LEWISTON 56 89 56 91 59 94 / 0 0 0 0 0 0
COLVILLE 44 85 48 87 52 89 / 0 0 0 0 0 0
SANDPOINT 49 80 52 83 55 86 / 0 0 0 0 0 0
KELLOGG 52 80 51 83 54 87 / 0 0 0 0 0 0
MOSES LAKE 58 89 56 91 57 95 / 0 0 0 0 0 0
WENATCHEE 61 89 63 90 65 93 / 0 0 0 0 0 0
OMAK 57 88 57 90 60 93 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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