311
FXUS66 KOTX 171118
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
418 AM PDT SUN AUG 17 2025
KEY MESSAGES
- ISOLATED THUNDERSTORMS POSSIBLE THROUGH MONDAY MORNING.
- WARM AND DRY FOR THE NEW WORK WEEK.
SYNOPSIS
AS THE SYSTEM CONTINUES TO EXIT THE REGION, ISOLATED
THUNDERSTORMS ARE POSSIBLE THROUGH MONDAY MORNING. BEHIND THE
SYSTEM, A RIDGE PATTERN WILL LEAD TO A RETURN OF WARM, DRY
CONDITIONS ACROSS THE REGION.
DISCUSSION
TODAY AND MONDAY: AS THE WEEKEND SYSTEM CONTINUES TO EXIT THE
REGION, IT WILL HAVE LINGERING SHOWERS OVER EXTREME EASTERN WA
AND THE ID PANHANDLE. WEAK AFTERNOON INSTABILITY COULD BRING AN
ISOLATED THUNDERSTORM OVER SOUTHEAST WA AND THE LOWER ID
PANHANDLE THIS AFTERNOON. ACTIVITY WILL WANE OVERNIGHT.
ENSEMBLES ARE SHOWING ENOUGH INSTABILITY AND RESIDUAL MOISTURE
TO PULSE ANOTHER ROUND OF SHOWER ACTIVITY MONDAY MORNING. WITH
THE BULK OF MOISTURE OUT OF THE REGION, AMOUNTS ARE NOT EXPECTED
TO BE MORE THAN A HUNDREDTH WITH A 50% PROBABILITY OF MORE. IT
COULD GENERATE AN ISOLATED LIGHTNING STRIKE ACROSS EXTREME
EASTERN WA AND ID PANHANDLE. MAIN IMPACT FROM ANY THUNDERSTORM
WILL BE THE INFREQUENT LIGHTNING. WINDS WILL CONTINUE THE CALM
OVERNIGHT NIGHT AND GUSTY IN THE AFTERNOONS. WIND GUSTS WILL BE
IN THE TEENS. HIGHS WILL BE IN THE 80S. LOWS WILL BE IN THE 50S.
TUESDAY THROUGH SATURDAY: WEAK RIDGING WILL BUILD OVER THE
REGION THROUGH THE WORKWEEK BRINGING A RETURN OF DRY AND WARM
WEATHER. TEMPERATURES WILL GRADUALLY CLIMB BACK INTO THE UPPER
80S AND LOW 90S. /JDC
AVIATION
12Z TAFS: VFR CONDITIONS ARE EXPECTED THROUGHOUT THE TAF PERIOD
FOR ALL SITES. WINDS WILL BE MOSTLY LIGHT, AND NO PRECIPITATION
IS EXPECTED. ISOLATED LOW STRATUS AND FOG FORMATION POSSIBLE IN
NORTHERN VALLEYS, BUT ANY CLOUDS OR FOG WILL DISSIPATE AFTER
SUNRISE, AND NO TAF SITES ARE ANTICIPATED TO BE IMPACTED.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
HIGH CONFIDENCE IN CONTINUED VFR CONDITIONS. LOW CONFIDENCE IN
TAF SITES BEING IMPACTED BY FOG OR LOW STRATUS OVERNIGHT.
-----------------------
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 81 57 84 57 87 58 / 0 0 20 0 0 0
COEUR D'ALENE 82 57 84 58 89 58 / 0 0 10 0 0 0
PULLMAN 79 53 82 53 85 54 / 0 10 10 0 0 0
LEWISTON 88 64 91 63 93 64 / 10 10 10 0 0 0
COLVILLE 81 46 82 45 86 47 / 0 0 20 0 0 0
SANDPOINT 80 51 82 52 88 53 / 0 0 20 0 0 0
KELLOGG 78 59 83 61 88 60 / 0 0 20 0 0 0
MOSES LAKE 83 58 86 55 87 56 / 0 10 20 0 0 0
WENATCHEE 83 62 85 60 87 63 / 0 0 10 0 0 0
OMAK 83 57 85 56 87 58 / 0 0 10 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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