Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

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Last Map Update: Sat, Nov 29, 2025 at 3:10:46 am PST

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Small Craft Advisory

Frost Advisory

Beach Hazards Statement

Exit November, Enter December Weather Highlights

As November ends and December begins, we'll see near-average cool weather with daytime highs similar across Sierra, Tahoe and western NV communities, mainly in the 40s and 50s. Sunday will feel the coolest overall due to increased northeast winds. Expect chilly mornings as well into the start of December, especially for Sierra valleys where lows dip into the teens. Dry conditions prevail through Monday, except for a slight chance of snow flurries north of Lovelock Sunday morning.