Thunderstorms rolled through the Bay Area Thursday night and early Friday morning, causing flight delays and slippery road conditions, authorities said.
By Thursday night, thunderstorms swept into Palo Alto, dropping heavy rain bringing temperatures down to below 50 degrees, according to weather.com. Gusts of up to 50 mph were predicted by the National Weather Service in a hazardous weather outlook.
A good portion of the Peninsula saw scattered storms with a lot of lightening Thursday, National Weather Service forecaster Diana Henderson said.
The thunderstorms caused delays of one to two hours for flights at San Francisco International Airport, an airport duty manager said.
Mostly coastal flights have been affected by the stormy weather and travelers can expect to see delays continue throughout the night, the duty manager said.
Airport officials expected service to resume on schedule Friday morning. Henderson said the thunderstorms are expected to continue well past midnight and the Bay Area will likely see more isolated showers throughout the day Friday.
"By Saturday it should be fine," she added.
The California Highway Patrol has issued high wind advisories for the Golden Gate Bridge and the Richmond-San Rafael Bridge.
The CHP urged motorists to use caution.
--Bay City News and Rachel Stern