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Floods

Floods. Chapter 17 Sections 2 & 3 Pages 567-582. Floods. Are the most dangerous weather-related events in the US. Floods occur when water pours into a stream or river that it overflows its banks and covers the land on either side. Flash Floods.

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Floods

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  1. Floods Chapter 17 Sections 2 & 3 Pages 567-582

  2. Floods • Are the most dangerous weather-related events in the US. • Floods occur when water pours into a stream or river that it overflows its banks and covers the land on either side.

  3. Flash Floods • A sudden, violent flood when water rises very rapidly. • Unexpected floods are the most dangerous. • It occurs within a few hours or even a few minutes of a storm.

  4. Predicting Floods • Advanced warnings can help reduce flood damage and loss of life. • Weather satellites can supply information about snow cover, so scientists can estimate how much water will rush into the river when it melts. • Scientists check river gauges that measure water levels.

  5. Predicting Floods • Forecasters can predict flood heights at different points on the river with the goal to help prepare people and evacuate. • A flood watch- means that flooding is possible. • A flood warning- means that flooding has been reported or is about to occur. Take action!

  6. Flood Emergency Safety • First rule of flood safety- move to higher ground and stay away from flood waters. • Do not try to cross streams and rivers that look flooded. • Do not play in water. • A few centimeters of water can sweep you off your feet. • Do not try to drive on a flooded road. • Moving water can sweep a car away. • Leave the car and move to higher ground.

  7. Other Flood Hazards Storm Menu • Floods can knock down electrical poles, wires- cutting off power supplies. • Can saturate soil, causing landslides or mudslides. • Emergency vehicles cannot get through flooded roads. • Flood waters can pollute water in wells and water treatment plants. • Be careful with anything that flood waters have touched. • Boil water before drinking it.

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