079
FXUS66 KOTX 172258
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
358 PM PDT SUN AUG 17 2025
KEY MESSAGES
- ISOLATED THUNDERSTORMS POSSIBLE THROUGH MONDAY MORNING.
- WARM AND DRY FOR THE NEW WORK WEEK.
SYNOPSIS
ISOLATED THUNDERSTORMS WILL BE POSSIBLE THROUGH MONDAY MORNING
AS A WEAK DISTURBANCE TRACKS THROUGH THE REGION. BEHIND THE
WAVE, A RIDGING PATTERN WILL LEAD TO A RETURN OF WARM, DRY
CONDITIONS ACROSS THE REGION.
DISCUSSION
SUNDAY NIGHT THROUGH MONDAY: A WEAK WAVE MOVING THROUGH THE BROADER
SOUTHWEST FLOW PATTERN ALOFT WILL BRING CHANCES FOR NOCTURNAL
SHOWERS AND POTENTIALLY AN ELEVATED THUNDERSTORM OR TWO OVER THE
EASTERN THIRD OF WA AND NORTH ID SUNDAY NIGHT INTO EARLY MONDAY
MORNING. CONFIDENCE IS LOW AS TO WHETHER OR NOT THE DYNAMICS
ASSOCIATED WITH THIS WAVE WILL BE STRONG ENOUGH TO PRODUCE ANY
LIGHTNING. THE MODELS MOST ENTHUSIASTIC ABOUT NOCTURNAL CONVECTION
(I.E., THE NAM) SHOW MUCAPE VALUES TOPPING OUT AROUND 100 J/KG WHICH
IS RATHER PITIFUL IN THE WORLD OF ATMOSPHERIC INSTABILITY, BUT
ENOUGH TO WARRANT A CAUTIONARY MENTION OF THUNDERSTORMS.
BY MONDAY AFTERNOON ANY SHOWER AND THUNDERSTORM CHANCES WILL HAVE
SHIFTED EAST OF THE REGION, GIVING WAY TO CLEAR SKIES AND
TEMPERATURES IN THE MID TO UPPER 80S.
TUESDAY THROUGH SATURDAY: A QUIET WEEK IS IN STORE FOR THE INLAND
NORTHWEST AS A RIDGE OF HIGH PRESSURE SETTLES IN OVER THE REGION
BRINGING CLEAR, DRY CONDITIONS AND GRADUALLY WARMING TEMPERATURES.
BY NEXT WEEKEND, EXPECT TEMPERATURES IN THE 90S TO LOW 100S.
OVERNIGHT LOWS WILL RANGE FROM THE 50S TO LOW 60S THROUGH THE
FORECAST PERIOD. /FEWKES
AVIATION
00Z TAFS: VFR CONDITIONS AND LIGHT WINDS ARE EXPECTED THROUGHOUT
THE TAF PERIOD FOR ALL SITES. THERE IS A 30 PERCENT CHANCE OF
SHOWERS FOR KGEG-KSFF-KPUW-KCOE FROM 11-19Z. THERE IS A 10-15%
CHANCE OF EMBEDDED THUNDERSTORMS WITH THESE SHOWERS.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
HIGH CONFIDENCE IN CONTINUED VFR CONDITIONS.
-----------------------
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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page