Quarter-size hail hits California after tornado warning

A tornado warning issued Thursday evening for parts of Central California was canceled after the immediate threat diminished, but severe thunderstorms continued across the region with damaging winds, hail and possible funnel clouds.

Earlier in the evening, forecasters warned that “a severe thunderstorm capable of producing a tornado” was moving northeast near South Dos Palos at about 15 mph, threatening mainly rural areas of southwestern Madera and western Fresno counties.

A severe thunderstorm warning remained in effect for that area into the evening, with forecasters warning of wind gusts up to 70 mph and quarter-size hail.

“Flying debris will be dangerous to those caught without shelter,” the agency said. “Damage to roofs, windows and vehicles will occur. Tree damage is likely.”

As the storm moved northeast, the weather service issued a new severe thunderstorm warning until 7:30 p.m. for Madera and Merced counties.

The warnings come as an unusually unstable spring weather pattern creates favorable conditions for thunderstorms across California.

Meteorologists said the broader system could bring lightning, hail, strong winds and isolated funnel clouds or tornadoes through the weekend, even in parts of the state where thunderstorms are uncommon.

Forecasters also warned that heavy rain could lead to localized flash flooding and urged drivers not to enter flooded roadways. Residents were advised to continue monitoring alerts from the weather service and local emergency officials.

For the Bay Area, the greatest thunderstorm risk is expected in inland areas, including the North Bay mountains, eastern Contra Costa County and interior valleys. San Francisco could also see storms later Friday or Saturday if the marine layer weakens, forecasters said.