Timeline: Heavy rain and possible thunderstorms in Bay Area continues, snow dump blankets Tahoe

Sunday, December 11, 2022
AccuWeather Forecast: Cold, chance of thunderstorms
More unsettled weather is on the way today as an upper low drops south along the coast. Showers with possible thunderstorms will bring heavier downpours at times.

SAN FRANCISCO (KGO) -- A Level 2 storm (moderate in strength) with an atmospheric river will come this weekend.

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Heavy rain will likely come in two waves on Saturday. There will be a break midday as the first wave comes between 4 a.m. and Noon and the second wave will be between 4 p.m. and 11 p.m.

There was a Wind Advisory until 1 p.m. for the coast and North Bay. Winds will be 15-25 mph with gusts 35-45 mph and up to 50 in the higher elevations.

The Wind Advisory expired at 3 p.m. for the rest of the Bay Area.

WATCH: Latest forecast here

RELATED: Major winter storm could make Tahoe travel 'difficult to impossible' Saturday

Rainfall will be generous with mainly an inch to two and a half inches. The North Bay Mountains and Santa Cruz Mountains could see up to 4 inches of rain.

Our highest storm concerns will be for hazardous travel and minor flooding on our area roads. Downed trees and isolated powers outages are possible with our gusty winds are also possible.

There was a short break of showers around midday as the front pushed to the south and east. Scattered showers are still expected throughout the weekend.

A Flood Advisory that was issued for the North Bay until 12:30 p.m. was extended until 2 p.m. on Saturday.

The air mass will get increasingly unstable for a chance of thunderstorms embedded with hail could be possible.

There is a major winter storm in the Sierra with a Winter Storm Warning that began at 10 p.m. Friday.

Travel will be impossible in the Sierra on Saturday and Sunday. Up to 6 feet of snow is possible above 5,000 feet.

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