Flood Ready San Mateo
OneShoreline helps San Mateo County residents and agencies prepare for creek and coastal flooding, from countywide conditions down to your own home.
-
Across the county
Flood Early Warning System
OneShoreline's Flood Early Warning System provides real-time rainfall, creek and tide data across San Mateo County, helping emergency managers and the public monitor conditions that may lead to flooding.
Explore the system → -
Before storms arrive
Flood Preparedness
Take simple steps ahead of wet weather and stay ready all winter: sign up for SMC Alert, check your flood risk, find sandbags and know what to do when a storm is coming.
Get ready for storms → -
At home
Ready Your Home for Flooding
Whether you rent or own, protect your home and belongings with a step-by-step checklist and a guide to choosing the right flood supplies.
Ready your home →