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San Mateo County’s Winter Weather Alert Warning (WWAW) Plan

San Mateo County’s Winter Weather Alert Warning (WWAW) Plan wants to be able to reach as many residents in the affected area. The WWAW plan utilizes a multi-method, multi-layered communication approach. To reach as many people as possible the County needs to assess gaps. This survey will allow the county to prioritize messaging and identify locations where additional resources are needed to fill in the gaps.

Please fill out Survey Form and email back to

Understanding Debris Flows and Flooding

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Watershed Emergency Response Team Evaluation

CalFire’s Watershed Emergency Response Team (WERT) has prepared a detailed report outlining potential risks from debris flows and hazard trees in the fire burn area and impacted watersheds.

WERT Report