142
FXUS66 KOTX 282219
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
319 PM PDT FRI MAR 28 2025
SYNOPSIS
COOLER AND UNSETTLED WEATHER WILL OCCUR THROUGH EARLY NEXT WEEK
WITH SEVERAL ROUNDS OF SHOWERS, AND SNOW RETURNING TO THE
MOUNTAINS AS WELL.
DISCUSSION
SHOWERS (PERHAPS WITH A FEW ISOLATED EMBEDDED THUNDERSTORMS) ARE
EXPECTED TO DECREASE IN COVERAGE AND INTENSITY BY THIS EVENING AND
OVERNIGHT. ANOTHER SHOWERY DAY IS LIKELY FOR SATURDAY UNDER A
PASSING DISTURBANCE BUT LESS COVERAGE THAN TODAY IS ANTICIPATED.
THE BEST CHANCES FOR PRECIP ARE FORECAST FOR THE ID PANHANDLE,
BLUE MOUNTAINS, AND NORTHERN WA MOUNTAINS. NEXT WEEK STARTS
MOSTLY, BUT NOT COMPLETELY, PRECIP-FREE FOR SUNDAY, BEFORE LOW
PRESSURE PUSHES INTO AND ACROSS THE INLAND NORTHWEST FOR MONDAY
INTO MIDWEEK. SNOW LEVELS WILL DROP TO 2500-3500 FT AT TIMES, BUT
MOST FROZEN PRECIPITATION WILL BE CONFINED TO THE MOUNTAINS AND
PASSES. TEMPS THROUGH THE 7-DAY FORECAST DON'T LOOK TO STRAY TOO
FAR FROM SEASONAL NORMS, WITH DAYTIME HIGHS IN THE UPPER 40S TO
MID 50S FOR MOST LOCATIONS. EXTENDED RANGE MODELS INDICATE THE
POTENTIAL FOR RIDGING RETURNING AT THE END OF NEXT WEEK INTO NEXT
WEEKEND, WHICH WOULD INDICATE A RETURN TO DRY AND WARMING
CONDITIONS. /KD
AVIATION
18Z TAFS: AN INCREASE IN BOUNDARY LAYER MOISTURE THIS MORNING
FROM SHOWERS WILL LEAD TO A 70% CHANCE FOR MVFR CONDITIONS WITH
THE SHOWERS INTO THE EARLY AFTERNOON ACROSS GEG-SFF-COE. WITH
SURFACE BASED INSTABILITY AROUND 100-300 J/KG IN THE AFTERNOON
TODAY, CANNOT RULE OUT AN ISOLATED LIGHTNING STRIKE AT THE
TERMINALS BUT TOO LOW OF A PROBABILITY FOR ANY OF THE TAF SITES TO
INCLUDE A MENTION. EXPECT BREEZY CONDITIONS. LATER THIS EVENING
INTO EARLY SATURDAY PRIMARILY VFR CONDITIONS AND LIGHTER WINDS.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: CONFIDENCE FOR
PERIODS OF SHOWERS THROUGH THE 00-04Z IS HIGH, BUT CONFIDENCE IN
SHOWERS BECOMING THUNDERSTORMS IS LOW. ADDITIONAL SHOWERS POSSIBLE
NEAR LWS INTO SATURDAY MORNING.
-----------------------
CONFIDENCE DESCRIPTORS:
LOW - LESS THAN A 30 PERCENT CHANCE
MODERATE - 30 TO 70 PERCENT CHANCE
HIGH - GREATER THAN A 70 PERCENT CHANCE
PRELIMINARY POINT TEMPS/POPS
SPOKANE 36 52 33 56 40 52 / 20 10 0 0 40 80
COEUR D'ALENE 35 51 33 56 37 51 / 30 10 10 0 40 80
PULLMAN 35 48 32 53 39 51 / 30 20 0 0 50 80
LEWISTON 42 55 37 60 43 58 / 40 20 0 0 40 80
COLVILLE 31 51 31 55 35 49 / 50 30 10 10 30 80
SANDPOINT 36 49 33 53 36 48 / 50 30 10 10 30 90
KELLOGG 37 46 35 52 39 47 / 40 30 10 20 40 90
MOSES LAKE 35 58 33 60 41 57 / 10 0 0 0 50 50
WENATCHEE 38 58 36 55 41 53 / 20 10 0 0 50 50
OMAK 37 57 33 58 40 55 / 40 10 0 0 30 80
OTX WATCHES/WARNINGS/ADVISORIES
ID...NONE.
WA...NONE.
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