Flooding Facts

Winter storms in California can be deadly, causing flooding, flash floods, high coastal surf, mudslides, snow storms, and avalanches. Understanding and preparing for flooding can help you weather the storms.

In the event of a potential significant storm, the City of Oceanside may utilize its Reverse-911 system (Alert San Diego) and phone calls would be made to residents and businesses with emergency information. Phone calls are made to landlines or to cell phone numbers that are registered with Alert San Diego. Cell phones may be registered free of charge; Click Here to register your cell phone. There is no need to register landlines, for they are automatically in the Alert San Diego system.

Before the Storm  

  • Monitor TV and radio (KOGO 600 AM or KLSD 1360 AM) for flood warnings.
  • Know how to shut off electricity at the fuse panel and gas service at the meter.
  • Never turn your gas service back on after shutting it off; only a certified gas company representative should turn gas back on.
  • Keep insurance documents and valuables in a safe-deposit box or move them to upper floors.

During and After the Storm

  • Don't go near, swim, or drive through flood waters and avoid downed power lines and broken gas lines.
  • Follow local instructions regarding the safety of drinking water.

Flooding Preparedness

Flood protection can involve a variety of changes to your house and property – changes that can vary in complexity and cost. You may be able to make some types of changes yourself. Property protection measures include:

  • Raise your furnace, water heater, and electric panel to higher floors or the attic if they are in areas of your home that may be flooded. Raising this equipment will prevent damage. An undamaged water heater may be your best source of fresh water after a flood.
  • Install check valves in plumbing to prevent floodwater from backing up into the drains of your home. As a last resort, when floods threaten, use large corks or stoppers to plug showers, tubs, or basins.
  • Seal walls in basements with waterproofing compounds to avoid seepage through cracks.
  • Keep insurance policies, documents, and other valuables in a safe-deposit box.
  • Move furniture and any other valuables to higher floors.
  • If flooding is expected, consider using sand bags to keep water away from your home. Keep materials like sandbags, plywood, plastic sheeting, and lumber handy for emergency waterproofing.
  • Keep watercourses free of fill/debris. Many people fail to recognize how regrading their yard, filling a wetland, or discarding leaves or branches in a watercourse can cause a problem to themselves and others.

To learn more about property protection measures, visit the Federal Emergency Management Agency’s (FEMA) website at http://www.fema.gov/plan/prevent/howto/index.shtm#4 and the San Diego County website at http://www.sdcounty.ca.gov/oes/disaster_preparedness/oes_jl_flooding.html.

For more information on how to prepare for a flooding disaster please download the following information guides: