After a brief interlude over the weekend, more storm systems will move into the Bay Area this week, with forecasts calling for additional drenching Tuesday, Wednesday, and Thursday.
According to the National Weather Service [NWS], a pair of storms have their sites set on SF:
An active weather pattern is forecast to redevelop by Tuesday. Rain will likely spread into the North Bay on Tuesday morning and then south across the rest of the region Tuesday afternoon and evening.
[...] A second, stronger, system is then forecast to impact the entire region from Wednesday through Thursday. This system has the potential to produce locally heavy rainfall from Wednesday afternoon through Wednesday night.
NWS predicts that there’s between a 60 and 70 percent chance of rainfall in the city on each of those three days, with estimates between a tenth and a half an inch across the predicted incidents.
The Weather Channel is going in even harder with its forecast, predicting a 90 percent chance of rain Thursday morning and an 80 percent chance Tuesday.
According to Golden Gate Weather Services, San Francisco has averaged more than 2.21 inches of precipitation in November since 2008, ranging from a low of 0.45 in 2009 to 4.5 in 2012. Last year clocked in at 2.83 inches.
NWS predicts an even greater chance of rain in Butte County, where the record-breaking Camp Fire is now fully contained but still smoldering.
Rain in recently burned areas can trigger additional disasters, such as flash flood and mudslides, but nobody has yet issued any potential hazard warnings for the region.
Statewide, the U.S. Drought Monitor reports that more than 77 percent of California is presently in a state of at least “moderate drought,” including the entire Bay Area.
More than 18 percent of the state suffers “severe drought” or worse in the most recent map (released last Wednesday, ahead of the most recent storms), though these conditions are mostly in the dry southern edges of the state.