Bay Area residents will experience a drop in temperatures this weekend, as a flow of air from Canada moves south into Northern California. Temperatures are expected to dip into the 30s on New Years morning, but areas closer to the water—such as San Francisco—will stay slightly warmer. Meteorologists predict morning temperatures of 45 degrees on Jan. 1. Cold weather will continue into Monday and Tuesday in San Francisco, where daily highs may not reach 50 degrees.

 

 

 

The Sierra Nevada snowpack — the source of roughly a third of California’s water supply — remains nearly 30 percent below average for this time of the year despite the state recently witnessing its heaviest rainfall in decades. In an update released Tuesday, California’s Department of Water Resources (DWR) said that the snowpack currently has a water content of 10.5 inches, just 72 percent of the Dec. 27 average. “It’s too soon to know whether this winter’s wet season will deliver enough rain and snow to move California closer to the end of the state’s five-year drought,” the DWR said.

The California Department of Water Resources will conduct its first media-oriented manual snow survey of Water Year 2017 at 11 a.m. on Jan. 3 at Phillips Station, just off Highway 50 near Sierra-at-Tahoe Road approximately 90 miles east of Sacramento. Electronic readings of the Sierra Nevada mountain snowpack on Tuesday peg its statewide water content at 10.5 inches, 72 percent of the December 27 average. The Phillips snow course, which has been measured each winter since 1941, is one of dozens that will be traversed during a 10-day period around Jan.