A late‑May storm slammed northern California Thursday, dumping rain on the Bay Area and snow on the Sierra Nevada. San Francisco recorded 0.60 inch of rain by mid‑morning, and a brief thunderstorm citywide across, nearly matching its historical May average of 0.64 inch and setting a record for May 28 since 1849. Meteorologists said the brief downpour posed no flood risk.

The moisture eases fire danger as vegetation dries ahead of the summer. Brent Wachter of the U.S. Forest Service noted the rain wet the landscape, lowering immediate wildfire threat, though he warned dry conditions return with next week’s warm forecast. Meanwhile, thunderstorms in the Central Valley brought brief hail, and the storm tracked eastward toward Nevada this weekend by night.

Skiers benefited at Mammoth Mountain, which received three to five inches of fresh snow Thursday, allowing the resort to stay open through at least June 7. The extended season supports local tourism revenue for the local economy as most other resorts have shut down. The storm is expected to clear California by nightfall and move into the Rocky Mountains, ending its brief impact on the West Coast.