Flood & Flash Flood Safety

Flooding is one of the most deadly weather hazards in the U.S., often striking with little warning. Flash floods can develop within minutes, especially in low-lying or flood-prone areas, and are frequently caused by slow-moving thunderstorms or levee failures.

Flood Terminology

  • Flash Flood Watch: Conditions are favorable. Be alert.

  • Flash Flood Warning: Flash flooding is happening or imminent. Take immediate action.

Before a Flood

  • Know if you live in a flood-prone area.

  • Create an emergency kit with food, water, meds, clothing, flashlight, radio, and key documents.

  • Plan evacuation routes and identify a family meeting place.

  • Prepare for long-term utility outages and store disinfectants and water purification supplies.

During a Flood

  • Stay informed via NOAA Weather Radio or local media.

  • Never ignore evacuation orders.

  • Avoid floodwaters—they may contain sewage, chemicals, or electrical hazards.

  • Do not drive through flooded roads—as little as 6 inches of water can cause loss of control, and 2 feet can sweep away most vehicles.

  • If trapped in a vehicle, abandon it if water is rising and it’s safe to do so.

If Trapped in a Blizzard While Driving (During Flooding + Winter Combo Event)

  • Remain in your vehicle and signal for help.

  • Run the engine 10 minutes every hour for warmth; ventilate to avoid carbon monoxide buildup.

  • Conserve battery power.

After a Flood

  • Return home only when authorities say it’s safe.

  • Wear gloves and boots while cleaning.

  • Disinfect anything that came in contact with floodwater.

  • Do not use potentially contaminated water for drinking, food prep, or hygiene.

  • Dispose of any food that may have been exposed to floodwater or left unrefrigerated.

Health & Safety Tips

  • Wash hands frequently. Use sanitizer if water is not safe.

  • Be cautious of heat illness or hypothermia during cleanup.

  • Prevent injury from sharp debris or hazardous equipment.

  • Avoid insect exposure in stagnant water areas.

For flood alerts and local emergency updates, sign up for CodeRED or contact Warren County Emergency Management at (636) 456-3786.