954 WWUS46 KSTO 302003 WSWSTO URGENT - WINTER WEATHER MESSAGE National Weather Service Sacramento CA 1203 PM PST Tue Dec 30 2025 CAZ068-069-310415- /O.NEW.KSTO.WS.A.0010.260103T0000Z-260104T1800Z/ Western Plumas County/Lassen Park-West Slope Northern Sierra Nevada- Including the cities of Chester, Quincy, and Blue Canyon 1203 PM PST Tue Dec 30 2025 ...WINTER STORM WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY MORNING... * WHAT...Heavy snow possible. Accumulations are uncertain at this time but may range from 1 to 3 feet above 5500 feet. Locally higher amounts are possible at higher elevations. Winds could gust as high as 45 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park Counties. * WHEN...From Friday afternoon through Sunday morning. * IMPACTS...Dangerous travel conditions with chain controls and road closures possible. Low visibility due to combination of wind and heavy snow. * ADDITIONAL DETAILS...Snow accumulations remain above pass level through Friday afternoon, then drop to 5500 to 6500 feet late Friday night into Saturday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1. && $$ For more information, visit us at www.weather.gov/sto/ JS