Tuesday, December 27, 2022

Atmospheric river brings heavy rain, gusty winds, flooding to Bay Area

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Timeline: Atmospheric river brings heavy rain, gusty winds, flooding to Bay Area

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ByDrew Tuma via KGO logo
Tuesday, December 27, 2022 12:39PM
AccuWeather Forecast: Heavy morning rain, flood and wind advisories
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Heavy morning rain will fall before 9 a.m. and expect a slow commute thanks to water on the roads. Flood and Wind Advisories are in effect in parts of the Bay Area.

SAN FRANCISCO (KGO) -- Our first Level 3 storm of the season is coming through the Bay Area thanks to an atmospheric river slamming Northern California.

LIVE: Track real-time weather conditions in the Bay Area

The heaviest rain arrived Tuesday morning and after 9 a.m. the Level 3 ranking will be dropped.

Between 9 a.m. and noon, we will see scattered light showers and it will be moved to a Level 1 on the Storm Impact Scale.

After 12 p.m. we will drop all SIS and we will begin to dry out.

Our Level 3 Storm has delivered 1"-3" of rain so far, flooding on numerous roads and wind gusts up to 50mph this morning.

A Flood Advisory went into effect for the North Bay, San Francisco and the coastline for the threat of flooding due to heavy rain. But just before 12:30 p.m., the flood advisory was cancelled for San Mateo, Santa Clara and Santa Cruz counties, the National Weather Service tweeted.

A Wind Advisory is also in effect for the North Bay Mountains, East Bay Hills and the coastline for wind gusts up to 50mph which could lead to power outages and trees coming down.

A High Surf Advisory is in effect along the entire coastline for breakers up to 25 feet causing beach erosion.

A Winter Storm Warning is in effect for Tuesday for Sierra. The areas above 5,500' can expect 6" to 24" of snow and up to 35" for the highest peaks.

Watch the latest AccuWeather forecast and take a look at recent weather stories and videos.

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