A tree about 100-feet tall crashed down across Summit Road and in to power lines about a mile away from Highway 17 in the Santa Cruz Mountains.
The road was blocked in both directions adding a 15 to 20 minute detour to the morning commute. The tree removal is expected to take all day.
VIDEO: AccuWeather forecast: Thunderstorms, showers
"I would say this has been a lot wetter than normal, but I love it at the same time. I would say all Californians love it, but they hate it when they have to drive in it," Los Gatos resident Ron Ricci said.
The National Weather Service had issued an urban/small stream flood advisory for the North Bay until 9 a.m. Thursday.
The NWS advised motorists not drive over flooded roadways and to report them to law enforcement.
ABC7 News Meteorologist Mike Nicco says this storm has been downgraded from a two to a one on our Storm Impact Scale and adds that we can expect thunderstorms and showers in parts of the Bay Area for the rest of the day.
RELATED: The ABC7 News Storm Impact Scale explained
Wind gusts will range from 30 miles per hour to 45 miles per hour.
VIDEO: Tips for how to drive safely on rainy days
Minor flooding is occurring on area creeks including Willow Brook at Penngrove Park as well as along the Sonoma Creek in the North Bay. The advisory is impacting more than 640,000 residents in the region.
And in the East Bay, a tree blocked the No. 2 lane of northbound state Highway 13 just south of Park Avenue, according to the California Highway Patrol.
The CHP said the tree went down just before 6:30 a.m. A solo-vehicle traffic collision was reported in the same area around an hour before the tree went down. It's not clear if the collision and the tree falling down are connected to each other.
Caltrans has been contacted, but it is not yet known when the tree will be cleared.
Dozens of other traffic incidents were reported in parts of the Bay Area Thursday morning due to the storm.
Huge 80-100 foot tree falls across Summit Road into power lines about a mile south of Highway 17 in the Santa Cruz Mountains. Crews say it could take all day to remove it. #abc7now pic.twitter.com/T95dlUjisJ— Matt Keller (@MattKellerABC7) March 22, 2018
First a spin out crash, now a tree down in the right lane of NB 13 near Park Blvd. Caltrans enroute, ETA 7am. pic.twitter.com/ab5nlpfaph— Alexis Smith (@AlexisABC7) March 22, 2018
Rain in Walnut Creek right now pic.twitter.com/0uK3i8OfFn— Amy Hollyfield (@amyhollyfield) March 22, 2018
Click here to download the free ABC7 News App to track the storm where you live. Make sure you enable push alerts for immediate notifications and severe weather alerts.
Click here for a look at weather where you live.
Bay City News contributed to this story.