446
FXUS66 KOTX 181134
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
434 AM PDT MON AUG 18 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
MONDAY: THE MORNING WILL START WITH A WEAK WAVE MOVING THROUGH
THE INLAND NORTHWEST FORM THE SOUTHWEST. ENSEMBLES HAVE
CONTINUED TO WEAKEN THE WAVE FROM PREVIOUS RUNS. ANY PRECIP
FROM THE IS NOT EXPECTED TO BE MORE THAN A TRACE WITH THE BEST
CHANCE ALONG THE EASTERN PORTION OF THE BASIN. AN ISOLATED
LIGHTNING STRIKE IS THE MAIN CONCERN FROM THIS WAVE BUT THE
PARAMETERS ARE NOT VERY EXCITED ABOUT IT. BY THE AFTERNOON, THE
WAVE HAS EXITED REGION OFF THE EAST. A RIDGE WILL BEGIN TO
BUILD INTO THE REGION FROM SOUTHWEST US. IT WILL USHER IN A DRY
WARMING TREND THAT IS EXPECTED TO LAST FOR THE REST OF THE WEEK.
TUESDAY THROUGH SATURDAY: HIGHS WILL CONTINUE TO BUILD A FEW
DEGREES WARMER THAN THE PREVIOUS DAY. TEMPERATURES WILL
GRADUALLY CLIMB BACK INTO THE 90S AND LOW 100S BY THE WEEKEND.
/JDC
AVIATION
12Z TAFS: VFR CONDITIONS AND LIGHT WINDS ARE EXPECTED THROUGHOUT
THE TAF PERIOD FOR ALL SITES. SCATTERED SHOWERS WITH A FEW
EMBEDDED THUNDERSTORMS ARE MOVING THROUGH THE KMWH AREA, AND ARE
EXPECTED TO LAST THROUGH 15Z. FOR KGEG-KSFF, THERE IS A CHANCE
OF SHOWERS THROUGH 18Z, AND A 10 PERCENT CHANCE OF ISOLATED
THUNDERSTORMS WITH THESE SHOWERS.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
HIGH CONFIDENCE IN CONTINUED VFR CONDITIONS. LOW CONFIDENCE IN
ISOLATED THUNDERSTORMS WITHIN SHOWERS AT KGEG-KSFF, SO
THUNDERSTORMS NOT IN THE TAFS. MODERATE CONFIDENCE IN LIGHT
SHOWERS THROUGH 18Z. /AS
-----------------------
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 85 57 88 58 86 56 / 30 0 0 0 0 0
COEUR D'ALENE 85 59 88 59 86 56 / 20 0 0 0 0 0
PULLMAN 83 53 86 53 83 52 / 10 0 0 0 0 0
LEWISTON 91 64 93 64 91 62 / 10 10 0 0 0 0
COLVILLE 82 47 87 47 85 45 / 20 10 0 0 0 0
SANDPOINT 81 53 88 53 84 51 / 30 0 0 0 0 0
KELLOGG 85 61 87 61 83 58 / 10 0 0 10 0 0
MOSES LAKE 86 56 88 56 88 54 / 20 0 0 0 0 0
WENATCHEE 85 61 88 63 86 60 / 10 0 0 0 0 0
OMAK 85 57 88 59 88 56 / 10 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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