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Flood — San Mateo, CA

Feb 14, 2019

An atmospheric river with an associated cold front moved through the region from February 12th to the 15th bringing widespread flooding and debris flows. Multiple mainstem rivers flooded prompting evacuations from local officials. Strong wind gusts caused downed trees, power outages, and structural damage. Additionally, a tree fell on a car causing one fatality and one serious injury on Highway 17 while another downed tree caused a serious multi-car traffic accident that resulted in another fata

Source: NOAA National Weather Service Storm Events Database (event 801035). 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.

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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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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 →