(KTVU) - Mother Nature will pound the South Bay today.
KTVU meteorologist Steve Paulson expects heavy rainfall along the Santa Cruz coastline.
He says this storm system will bring colder temperatures.
Winds Friday morning reached 40 miles an hour.
A wind advisory was issued until Friday afternoon.
While the South Bay missed out on Thursday's storm, Steve says the area will receive the brunt of Friday's storm.
Meanwhile, a Caltrans crew in Fort Bragg was caught in a mudslide Friday morning. "While an employee sat in a ten-yard dump truck near the first slide a second slide came down. Thankfully the truck was not pushed over the edge of the highway, it was stopped by a guardrail, and the employee was not injured, only shaken up," Caltrans wrote on its Facebook page.
The storm is impacting plans for some travelers.
Wind and especially heavy rain is caused cancelations and delays Friday morning at San Francisco International Airport, while operations at the two other major area airports are going smoothly.
Duty manager Nancie Parker of San Francisco International Airport said as of 8:30 a.m. 53 flights had been canceled and 92 delays had been reported.
The delays were about 30 to 90 minutes but may increase to 145 minutes as the weather worsens.
Most of the delays and cancelations are on flights up and down the west coast of the United States to places such as Los Angeles and Seattle.
"Because that's where all the rain is," Parker said.
The wind speed was 16 mph at 8:30 a.m. and gusts are expected to reach 45 to 50 mph, which may cause the number of delays and cancelations to increase.
Parker is asking people to check with their carrier before coming to the airport to see whether their flight has been delayed or canceled.
Operations at Oakland International Airport and Mineta San Jose International Airport are running smoothly.
Several Sonoma County schools have closed Friday due to the storm.
The Shoreline Unified School District closed. It has schools in Tomales, Point Reyes and Bodega Bay.
Other school closures Friday include Monte Rio Union and Guerneville school as well as Harmony Elementary, in Occidental, and Salmon Creek Charter.