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Flood — San Mateo, CA

Feb 4, 2024

A rapidly intensifying cyclone and atmospheric river combined from February 3rd to the 5th, creating a period of strong winds, heavy rain, and high surf. The entire region saw numerous impacts including roadway flooding, fallen trees, and power outages. Flood prone areas near rivers and along the coast were evacuated. Notable impacts also included pre-emptive closing of state parks, the cancelation of the San Francisco Half-Marathon, and the PGA canceling the final round of the Pebble Beach Pro-

Source: NOAA National Weather Service Storm Events Database (event 1154903). Narrative written by NWS staff at the time of the event.

Flood Risk Context for San Mateo, CA

This event is one of many recorded floods in San Mateo County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View San Mateo County flood data →

More Flood Stories

Flash Flood$500K damage

San Mateo, CA · Dec 11, 2014

An Atmospheric River event brought heavy rain and gusty winds with a strong winter storm that impacted the Bay Area for several days in mid-December. Cyclogenesis occurred with a 979 mb low forming off the Northern California coast.

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Flood$5.0M damage

San Mateo, CA · Dec 31, 2005

Widespread flooding occurred in the county, due to small streams over-flowing and poor drainage problems. The bulk of the damage occurred in East Palo Alto, San Mateo, Daly City, Colma, Brisbane, San Bruno, South San Francisco and Pacifica.

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Flood$5.0M damage

San Mateo, CA · Jan 1, 2006

Flooding from late December 2005 continued into the beginning of 2006. Several small streams overflowed due to the heavy rains and poor drainage problems.

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Flash Flood

San Mateo, CA · Dec 11, 2014

An Atmospheric River event brought heavy rain and gusty winds with a strong winter storm that impacted the Bay Area for several days in mid-December. Cyclogenesis occurred with a 979 mb low forming off the Northern California coast.

Read the full account →