Two rounds of heavy rain are headed to the Bay Area. Here’s a timeline of the storms
Precipitation totals of 1 to 3 inches are forecast through Monday across much of Northern California.

TL;DR
- A powerful cold front is expected to bring heavy rain to the Bay Area on Friday, with potential for thunder.
- Strong southerly winds up to 40 mph will precede the heaviest rain, causing choppy waters and potentially impacting unsecured items.
- Giant waves of 20 to 30 feet are forecast along the coast on Saturday, with life-threatening conditions warned.
- A second, slightly weaker storm system is expected on Sunday, bringing more rain and turbulent seas.
- Total rainfall of 1 to 2 inches is forecast for the Bay Area by Monday morning, with continued wet weather predicted throughout the winter due to El Niño.