Marine Weather and Tide Forecast for Manson, WA

SYNOPSIS
Mild temperatures are expected for the weekend. Isolated showers and thunderstorms will continue along the Canadian border today. Warmer temperatures will occur on Sunday and Monday before an increasing risk for elevated fire weather conditions from gusty winds through the middle of next week.

DISCUSSION
Today and tonight: Scattered showers and thunderstorms ongoing this afternoon in the northern mountains will quickly shut down this evening as a vort max currently in central WA moves north into southern BC, bringing sinking motion into the area. Tonight will be cool in the 40s and 50s as dry air lingers. The sheltered valleys of northeast Washington and north Idaho have a 30% chance to reach into the upper 30s.

Sunday through Saturday: Tomorrow will be drier as a shortwave ridge builds with highs in the 80s. There is a still a 15% chance of showers north of Highway 20 in the afternoon in WA with terrain forcing. Monday will be dry, warm, and breezy as a wave crosses the Cascades in the afternoon. Temps will reach into the 80s with 10-20 mph westerly winds gusting up to 30 mph. Southwest flow will increase ahead of a shortwave Tuesday bringing small precip chances (15%) to the Cascade crest. The wave will pass through Wednesday bringing more breezy west winds. The deeper trough off the coast will slowly drift east late next week bringing cooler temperatures in the 60s and 70s and chances for much needed rain to the INW. DB

AVIATION
18Z TAFS: VFR conditions with light winds will continue for all TAF sites through 18z Sunday. There is a 20-40 percent chance for showers and isolated thunderstorms near the Canadian border through 03z.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence for VFR conditions.

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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 48 81 51 84 51 78 / 0 0 0 0 0 0 Coeur d'Alene 45 81 48 83 51 78 / 0 10 0 0 0 0 Pullman 46 77 49 79 45 76 / 0 10 0 0 0 0 Lewiston 54 85 55 88 56 86 / 0 10 0 0 0 0 Colville 40 81 40 83 43 79 / 10 20 0 0 0 0 Sandpoint 42 80 43 82 49 78 / 0 10 0 0 0 0 Kellogg 50 77 52 80 54 75 / 0 10 0 0 0 0 Moses Lake 49 86 48 88 48 85 / 0 0 0 0 0 0 Wenatchee 55 85 56 85 55 84 / 0 0 0 0 0 0 Omak 51 85 52 86 50 84 / 20 0 0 0 0 0

OTX WATCHES/WARNINGS/ADVISORIES
WA...None.
ID...None.