Temperatures are expected to be cold as the storms move through. Daytime highs are not expected to exceed the high 50s until Saturday. Overnight lows are expected to dip into the low 40s in most of the region and into the high 30s in the most inland places.

A storm system rolling through the Bay Area Wednesday has triggered a severe thunderstorm warning for San Francisco and parts of the Peninsula. We’re tracking the latest weather alerts issued by the National Weather Service below.

The latest atmospheric river arrived on Wednesday in the Bay Area with damaging winds bringing down trees, the threat of thunderstorms, and possible snow in the highest peaks.The storm which began sweeping over the North Bay in the morning was sliding south throughout the afternoon and evening.

A fast-moving storm system is sweeping into the Bay Area and Central Coast, bringing heavy rain, strong winds and the possibility of thunderstorms, according to the National Weather Service. A wind advisory is in effect from 8 a.