Flooding

Flash Flooding

flooding.jpg

Generally develops within six hours of an intense rainfall event. Typically, we see flash flooding occur when slow-moving or multiple thunderstorms move over our County. Urban areas are more prone to flash flooding due to the concrete and asphalt restricting water absorption into the soil. 

River Flooding

Occurs when river levels rise and overflow the river banks. River flooding can be caused by heavy rainfall, dam failures, rapid snowmelt, and ice jams. To monitor river levels in your community, visit National Water Prediction Service website.

Flood Safety

Before a Flood

  • Know if you are in a floodplain by visiting FEMA's National Flood Hazard Layer (NFHL) Viewer website 
  • Make a plan! Know your evacuation routes and where you can stay if you find your home effected by flooding
  • Have a go bag ready for a fast evacuation
  • Prepare your home:
    • Purchase or renew your home's flood insurance
    • If major flooding is predicted, consider putting sandbags around your home
    • Ensure all drainage systems and sump pumps are in working condition

For more information on general preparedness, visit our Emergency Preparedness page

During a Flood

  • Turn around, don't drown! If you find your self approaching a flooded road way or sidewalk, you should turn around and find an alternate route to your destination. This is because you never know how high the water is and if there are any hazardous materials beneath the surface. Also, never drive around barricades. 
  • Stay informed. Monitor social media and the news for information and updates regarding flooding
  • Practice Electrical Safety
    • Do not enter any room that has water up to electrical outlets
    • Never step in puddles 

After a Flood

  • Do not walk in flooded areas because of potential hazards 
    • Electricity
    • Dangerous debris
  • Stay informed! Local authorities could be updating the public on the following:
    • Updated storm and road conditions
    • Water safety
    • Boil water notice
    • Updates from utility companies

Warning vs. Watches

Flash Flood Warning

Flash flooding is either imminent or occurring. This event can take from minutes to hours to develop. 

Action you should take: immediately move to higher ground. 

Flood Warning

Flooding in your area is imminent or occurring. 

Action you should take: inspect your surroundings and move to higher ground. 

Flood Advisory

Issued when hazardous weather is in the forecast but flooding is not expected to be bad enough to issue a warning. 

Action you should take: be aware of the expected hazard. 

Flood Watch

Issued when conditions are favorable for a flooding event. 

Action to take: monitor the weather and be prepared. 

Additional Resources

NWS Flood Safety Tips and Resources

Ready.gov - Flood

 

Back to top