A pedestrian carries an umbrella looking to the horizon from Dolores Park in San Francisco on December 13, 2021. Jeff Chiu / AP The heaviest storm to hit the San Francisco Bay Area since early January has seen heavy rain overnight and more rain, and even lightning, are forecast Monday, according to the National Weather Service. The system is expected to advance to the Central Coast on Monday afternoon and total rainfall in the Santa Lucia Mountains along the Big Sur coast could reach 2 to 4 inches. The Meteorological Service has a flood clock in effect for scars from the Colorado and Dolan fires until 8 p.m. on Monday. After a rainy night look for scattered rain again today. Maybe even a thunderbolt. Flash Flood Watchs continue for the burn marks of Colorado and Dolan due to the possibility of a short period of heavy rain. #cawx pic.twitter.com/15AiWraBtg – NWS Bay Area 🌉 (@NWSBayArea) March 28, 2022 The heaviest rain expected to be seen in the bay area with this system fell during the night and generally brought 0.25 to 1 inch of rain. Here are some total rainfall over the last 24 hours: Scotts Valley: 1.46 inches Mount Tamalpais: 1.2 inches Santa Rosa: 0.71 inches Auckland Zoo: 0.55 inches Pacific: 0.53 inches Walnut Creek: 0.45 inches Concord: 0.31 inches Auckland Museum: 0.26 inches Downtown San Francisco: 0.18 inches Suisun City: 0.15 inches San Jose International Airport: 0.13 inches The last time the San Francisco Bay Area saw significant heavy rainfall was at the beginning of the year. On January 3, Santa Rosa recorded 0.45 inches of rain and San Francisco 0.34 inches.
Conditions are expected to dry on Tuesday and no rain is forecast until Sunday. Amy Graff is the news editor for SFGATE. Born and raised in the Bay Area, he started in the Daily Californian at UC Berkeley, where he studied English literature. Has been with SFGATE for over 10 years. You can email her at [email protected]