550
FXUS66 KOTX 190608
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
1108 PM PDT SUN OCT 18 2026
KEY MESSAGES
- DRY WEATHER CONTINUES THROUGH AT LEAST THE MIDDLE OF NEXT WEEK
WITH MILD AFTERNOON TEMPERATURES.
- BREEZY WINDS DOWN THE OKANOGAN VALLEY ON TUESDAY.
- COOLER WEATHER WITH INCREASED PRECIPITATION CHANCES ARRIVE
LATE NEXT WEEK.
SYNOPSIS
DRY WEATHER IS EXPECTED INTO WEDNESDAY, WITH VARIABLE CLOUD
COVER AND MILD TEMPERATURES. COOLER WEATHER AND INCREASING
PRECIPITATION CHANCES ARRIVE LATE IN THE WEEK.
DISCUSSION
TODAY THROUGH WEDNESDAY: A TROUGH WILL BE DEEPENING ALONG THE
COAST AS A LOW DROPS SOUTH OFF THE COAST OF CALIFORNIA. MODELS
HAVE BEEN FAIRLY CONSISTENT WITH THE OVERALL PATTERN. THE MAIN
DIFFERENCE IS THE LOW IS NOW EXPECTED TO FARTHER DISTANCE OFF
THE COAST. WHILE THE INLAND NORTHWEST WAS NOT EXPECTED TO
RECEIVE ANY PRECIP FROM IT, THE DISTANCE LIMITS THE CLOUD COVER
AND AMOUNTS MAINLY HIGH, THIN CLOUDS. THE LOW BECOMES CUTOFF AND
A SPLIT FLOW PATTERN DEVELOPS OVER THE NORTHWEST. DRY, WARM
CONDITIONS ARE EXPECTED OVER THE INLAND NORTHWEST THROUGH MOST
OF WEDNESDAY. PRECIP CHANCES ACROSS THE REGION REMAIN NEAR 0
PERCENT THROUGH WEDNESDAY. THE REGION CAN EXPECT WARM DAYTIME
AND COLD OVERNIGHT CONDITIONS. WINDS WILL BE GENERALLY CALM
EXCEPT A BRIEF PERIOD OF BREEZY WINDS DOWN THE OKANOGAN VALLEY
ON TUESDAY WITH GUSTS INTO THE UPPER 20 MPH RANGE. SUNDAY HIGHS
WILL BE 50S AND LOW 60S AND SLIGHTLY INCREASE THROUGH MIDWEEK
INTO THE 60S. OVERNIGHT LOWS WILL BE IN THE UPPER 20S AND 30S.
OVERNIGHT PATCHY FROST COULD IMPACT ANY REMAINING GARDENS AND
SENSITIVE SEASONAL PLANTS.
LATE WEDNESDAY THROUGH SUNDAY: THE LOW FINALLY EJECTS NORTHEAST
TOWARD MONTANA AS A TROUGH MOVES INTO THE PACIFIC NORTHWEST
OVERNIGHT WEDNESDAY INTO THURSDAY. A WRAP AROUND BAND OF
MOISTURE WILL BRING INCREASED SHOWER CHANCES TO SOUTHEAST WA AND
THE IDAHO PANHANDLE ON THURSDAY WITH A 40-60 PERCENT
PROBABILITY OF AT LEAST A TENTH OF AN INCH. A TROUGH PATTERN
WILL BE OVER THE PACIFIC NORTHWEST BEHIND THE EXITING LOW. IT
WILL KEEP THE INLAND NORTHWEST UNDER A COOL, WET CONDITIONS
THROUGH THE WEEKEND WITH A LOW TRACKING THROUGH NORTH
WASHINGTON. FRIDAY WILL HAVE MOUNTAIN SHOWERS WITH BREEZY WINDS
ACROSS THE BASIN. WIND SPEEDS WILL BE TEENS WITH GUST INTO THE
UPPER 20S MPH RANGE. THROUGH THE WEEKEND, LOW LAND LOCATIONS
HAVE 25-75 PERCENT PROBABILITY OF RECEIVING A FEW HUNDREDTHS TO
0.2 INCHES OF PRECIP. CASCADES SHOULD SEE HIGH AMOUNT RANGE OF
0.1-0.5 OF AN INCH. SNOW LEVELS DROPPING DOWN TO AROUND 4000
FEET THROUGH THE WEEKEND. BACK COUNTRY TREKKERS SHOULD PREPARE
FOR COLD, LIGHT SNOW CONDITIONS. HIGHS WILL BE IN THE 50S TO LOW
60S. OVERNIGHT LOWS WILL BE IN THE UPPER 20S AND 30S. /JDC
AVIATION
06Z TAFS: VFR CONDITIONS WITH LIGHT WINDS UNDER 10 KTS
REGIONWIDE. HIGH CLOUDS WILL INCREASE THIS EVENING WITH A BROKEN
TO OVERCAST CIRROSTRATUS DECK DEVELOPING OVERNIGHT INTO MONDAY
MORNING.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: HIGH CONFIDENCE
IN VFR CONDITIONS. /JDC
-----------------------
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 39 59 40 66 39 66 / 0 0 0 0 0 0
COEUR D'ALENE 39 61 40 66 40 67 / 0 0 0 0 0 0
PULLMAN 38 60 36 65 37 66 / 0 0 0 0 0 0
LEWISTON 42 66 42 66 43 69 / 0 0 0 0 0 0
COLVILLE 31 62 32 66 31 69 / 0 0 0 0 0 0
SANDPOINT 37 60 37 65 37 66 / 0 0 0 0 0 0
KELLOGG 39 63 41 66 39 68 / 0 0 0 0 0 0
MOSES LAKE 37 61 37 69 35 68 / 0 0 0 0 0 0
WENATCHEE 43 63 44 67 44 68 / 0 0 0 0 0 0
OMAK 38 64 38 67 38 69 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
WA...NONE.
ID...NONE.
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