Flooding causes severe traffic on busy South Bay freeways

Flooding prompted a severe traffic alert on southbound Interstate 280 and southbound Highway 87 near San Jose, officials said.

“A large pool of water” was first reported just after 4:00 a.m., according to the California Highway Patrol.

CHP issued the traffic alert after the connector ramps were shut down. The right lanes on southbound 280 and 87 were closed as of 6:20 a.m.

Flooding shut down ramps to Interstate 280 and Highway 87, slowing traffic around San Jose, officials said. Flooding shut down ramps to Interstate 280 and Highway 87, slowing traffic around San Jose, officials said. Photo: CHP San Jose Photo: CHP San Jose Image 1 of / 28 Caption Close Flooding causes severe traffic on busy South Bay freeways 1 / 28 Back to Gallery

Drivers are advised to avoid the area and there is no estimated time to reopen the roadway.

ALSO: Double decker tour bus catches fire in San Francisco

Sophie Haigney is a San Francisco Chronicle staff writer. Email: sophie.haigney@sfchronicle.com Twitter: @SophieHaigney