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.