In Contra Costa County, storm runoff comes fast and the water raises quickly in creeks. Residents and businesses lack time to prepare once a large storm is upon us.
The National Weather Service California Nevada River Forecast Center (CNRFC) produces several on-line products to inform the public on weather related issues. Flash Flood Guidance Maps are one of these products.
Review the Flash Flood Guidance maps and become familiar with other weather links. Prepare early if you live in a flood prone area.
What to do if forecasts predict flooding If the 24-hour forecast is for two (2) inches of rain or more, and the other antecedent conditions are met, flooding may occur sometime in the next 24 hours.
If you live in a flood prone area, you should have a personal evacuation plan and keep an eye on the weather and the antecedent conditions. Monitor weather agency broadcast warnings via television and radio. Your personal evacuation plan should be implemented if you sense flooding may occur.