527 WWUS46 KSEW 202312 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 312 PM PST Wed Nov 20 2024 WAZ567-210015- /O.CAN.KSEW.WW.Y.0021.000000T0000Z-241121T0200Z/ West Slopes North Cascades and Passes- Including the cities of Concrete, Lyman, and Hamilton 312 PM PST Wed Nov 20 2024 ...WINTER WEATHER ADVISORY IS CANCELLED... The snow threat has ended. $$ HPR