Stormy Weather Brings Some Drought Relief; Monthly Snow Pack Survey Still Below Normal CBS SF Bay Area 2/4/2021 Syndicated Local – CBS San Francisco SAN FRANCISCO (CBS SF) — The stormy weather that brought 8-10 inches of rain in the Santa Cruz Mountains and up to 10 feet of snow to the Sierra did ease drought conditions across the San Francisco Bay Area, but much more rain and snow is needed in February and March, officials said. The U.S. Drought Monitor released its weekly drought map Thursday and the change in the last two weeks was very noticeable. The Bay Area had been locked into severe or extreme drought conditions before the late January atmospheric river roared into the region. On Thursday, San Francisco, Marin and San Mateo counties had improved to moderate drought conditions.