Floods - General Information

Floods are the most common and widespread of all natural hazards. Some floods develop over a period of days, but flash floods can result in raging waters in just a few minutes. Flash floods carry a deadly cargo of rocks, mud, and other debris, and can occur without any visible sign of rainfall. Mudslides are another danger created by flooding.

Be aware of flood hazards, especially if you live in a low-lying area, near water, or downstream from a dam. Most areas in Southern California are at risk from the hazards of flooding, especially during El Nino rainstorm events.