Warm season flash floods are the result of intense rainfalls in a short period of due to slow moving thunderstorms. Flash floods occur within a few minutes or hours of excessive rainfall, dam or levee failure, or a sudden release of water held back by an ice jam.
Flash flood or flood warnings are issued when flash flooding has been observed or is highly imminent. Urban and small stream advisories are issued for inconvenience flooding of small streams and streets and low lying areas such as railroad underpasses and urban storm drains.
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Know your area's flood risk, flood history, and elevation above flood stage.
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Have a family emergency plan,
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Have a predetermined spot away from your home where you and your family can go to if told to evacuate.
NEVER drive across a flooded road.
Do not attempt to wade across a flooded street or area.
What You and Your Family Can Do:
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Monitor a NOAA Weather Radio signal to obtain the latest forecasts and warnings.
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Make sure the radio receiver has a battery backup.
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NWS warnings are broadcast on commercial radio and TV stations as well as cable TV channels.
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Know the county you live in. Severe weather watches and warnings are issued on a county basis.
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Postpone outdoor activities if thunderstorms are imminent.
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Stay off the water if a thunderstorm approaches.
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If a storm is approaching, seek sturdy shelter.
What to do and take should your family be evacuated:
- Clothing for a week
- Prescribed or necessary medication and glasses
- Important papers and purse or wallet, credit cards, deeds, and checks
- Personal and toiletry articles
- Special dietary items such as infant formula
- Bring books, cards or games for entertainment
- Household pets should be evacuated. You are responsible for the care and shelter of the animal. Pets are not allowed in public shelters.
- Lock doors, shut windows and close blinds and draperies. Prepare your home like you were going on vacation.
- Notify family and friends about what is happening and where you plan to stay
- Move quickly and calmly
If you are ordered to stay indoors or “shelter in place” follow these tips:
- Close all doors and windows
- Do not evacuate your home
- Turn off air conditioners, furnaces, ventilation fans and other air intakes
- Listen to the radio for further instructions