Area Forecast Discussion
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
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516 FXUS66 KOTX 150837 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 1237 AM PST Sat Nov 15 2025 .KEY MESSAGES... - Mountain snow Sunday into Monday. Minor travel impacts expected. - Low impact and unsettled wet weather continues throughout next week. && .SYNOPSIS... The Inland Northwest will continue to have showers into Saturday morning. Light snow is expected over mountain passes. A brief break between weather systems on Saturday. Then another weather system Sunday into Monday will bring additional light precipitation including more light snow to mountain passes. && .DISCUSSION... Saturday and Sunday: Satellite and radar are showing a more westerly-zonal flow as precipitation continues to fall across the northern counties in Washington and Idaho. The Cascades are also receiving the brunt of the precipitation as the system transitions perpendicular to the mountain range. The above normal precipitable water content with this system will lose some of that moisture Saturday into Sunday, and as such we`ll see a break in the valley rain for many low-land areas Saturday. Sunday the next upper level trough swings in from the northwest, brining another round of precipitation to the Inland Northwest. This time, the amounts look light and with higher snow levels, any snow should remain at the higher mountain ridges. This weather system will again remain mild with temperatures overnight in the 40s and during the daytime in the 50s. Monday through Friday: The upper level weather system will move through the region and begin to introduce cooler air aloft. There remains quite differing solutions through the week, more notable for Tuesday and again by Friday, as far as the strength of the cooler air mass and the precipitation (type and amount). Relying on the ensemble suite of models, there is good consensus Tuesday and Wednesday before differences arise Friday with the placement and strength of the Low moving into the West. The cooler air mass will bring lower snow levels through the week, though remaining around 3000-4000 feet. Periods of precipitation through the week will be common, as has seemed to be common the last few weeks. Most of the Inland Northwest (outside of Grant County) will have greater than 50% chance of seeing more than half an inch of precipitation by Friday. North Idaho, from St Maries to Bonners Ferry has greater than 60% chance of seeing more than three-quarters of an inch of precipitation, and the Cascade Crest (western Chelan and Okanogan counties) has greater than 75% chance of seeing over 1.25 inches of precipitation. Periods of precipitation look to be light in intensity so more beneficial and low impact through the week. /Dewey && .AVIATION... 06Z TAFs: The wet weather system will continue pushing east and exit the region on Saturday. The surface gradient will gradually relax after 19-21z Saturday allowing surface winds to relax. Until then, breezy southwest winds will prevail for most air fields which will also limit some MVFR Vis/Cig conditions. However, cool overnight temps and a moist air mass in place will bring MVFR conditions Saturday morning as the winds begin to taper. After 22z Saturday, conditions should improve to VFR. .FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Moderate to high confidence for MVFR ceiling conditions. Low confidence in reaching IFR ceiling conditions. /Dewey ----------------------- 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 52 45 56 42 55 42 / 70 60 20 20 30 60 Coeur d`Alene 51 45 54 42 53 43 / 80 90 50 30 30 70 Pullman 52 44 56 41 53 42 / 80 40 50 10 40 80 Lewiston 59 48 61 44 55 47 / 60 20 30 0 50 80 Colville 49 37 54 38 52 38 / 90 80 30 50 50 60 Sandpoint 48 41 50 40 52 41 / 90 100 80 60 50 70 Kellogg 49 45 50 43 54 45 / 90 100 90 30 40 90 Moses Lake 57 44 60 43 57 42 / 20 20 0 20 20 30 Wenatchee 55 46 60 47 55 45 / 40 50 10 30 20 40 Omak 52 42 55 43 53 44 / 60 40 10 20 30 30 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$