The heavy rainfall, estimated between 2 to 4 inches, could lead to excessive runoff, causing flooding of rivers, creeks, and low-lying areas.

Chief Meteorologist Joe Fitzwater is tracking heavy rain and the potential for flooding in tonight’s forecast.

After a long dry spell accompanied by freezing temperatures in the Bay Area, rain is finally reentering the forecast, with an atmospheric river poised to soak the region in the coming days. The precipitation comes after forecasters initially expected the final weeks of the month to be completely dry,

Following a mostly dry January in the Bay Area, a wet weather pattern returns to the region beginning on the final day of the month.