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Flash Flooding

Flash Flooding. Kaylee Williams. Historic Floods. The Galveston Hurricane: The Galveston, Texas, hurricane of 1900 killed at least 8,000 people.  The Johnstown Flood:

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Flash Flooding

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  1. Flash Flooding Kaylee Williams

  2. Historic Floods The Galveston Hurricane: • The Galveston, Texas, hurricane of 1900 killed at least 8,000 people.  The Johnstown Flood: • In 1889 a dam break upstream from Johnstown, Pennsylvania, released a 30-40 foot wall of water that killed 2200 people within minutes. Louisville, Kentucky :October 6th 2013 (most recent) • The region received 5.91 inches of rain Saturday, breaking the previous single-day record for Oct. 5 of 3.07 inches in 1910, the National Weather Service said.

  3. Causes • Flash flooding occurs when precipitation falls rapidly on saturated soil or dry soil that has poor absorption ability

  4. Hazards • The advice “Turn Around, Don't Drown” is used in the National Weather Service meaning it recommends that people get out of the area of a flash flood, rather than trying to cross it. • Many people tend to underestimate the dangers of flash floods. What makes flash floods most dangerous is their sudden nature and fast moving water

  5. Flash Flood Safety • Flash Floods are the #1 thunderstorm –related killer. • Most flash flood deaths occur in vehicles. • Moving water 2-3 feet deep will carry away most vehicles. • Keep children away from creeks and washes when heavy rain is in the area. • Be especially carful at night when water depth and road conditions are harder to see. • Move to higher ground.

  6. Colorado Flash Flood of September 2013 Pro mountain biker Joey Schusler tests his skills along Canyon Boulevard in Boulder, Colorado A heard of cattle find dry ground in Fort Collins

  7. Colorado Flash Flood of September 2013 • During the week starting on September 9, 2013, a slow-moving cold front stalled over Colorado, clashing with warm humid monsoonal air from the south. This resulted in heavy rain and catastrophic flooding along Colorado's Front Range from Colorado Springs north to Fort Collins. • Several earth dams along the Front Range burst or were over-topped. • The total amount of precipitation was up to 17 inches. • http://www.csmonitor.com/USA/USA-Update/2013/0915/Colorado-flood-There-s-more-where-that-came-from-video

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