2009: October 1, Giampilieri, Messina, 37 dead.
Is It Possible to Be Under a Flood Alert and a Flash Flood Alert?
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"A Preparedness Guide to flash floods #1 weather-related killer in the United States".Wir verwenden Cookies, um Inhalte zu personalisieren, Werbeanzeigen maßzuschneidern und zu messen sowie die Sicherheit unserer Nutzer zu erhöhen.Archived from the original.First, storms in arid regions are infrequent, but they can deliver an enormous amount of water in a very short time.Further reading edit Schmittner, Karl-Erich; Pierre Giresse (August 1996).Second, these rains often fall on poorly absorbent and often clay-like soil, which greatly increases the amount of runoff that rivers and other water channels have to handle.In contrast, flash flooding more often involves localized flooding of small rivers, streams, creeks, and storm sewers.Flash floods are distinguished from regular floods by having a timescale of fewer than six hours between rainfall and the onset of flooding.A vehicle provides little to no protection against being swept away; it may make people overconfident and less likely to avoid the flash flood.Driving through a flash-flooded road, a flash flood after a thunderstorm in the.The United States National Weather Service gives the advice "Turn Around, Don't Drown" for flash floods; that is, it recommends that people get out of the area of a flash flood, rather than trying to cross.
2 3 Human activities can also cause flash floods to occur.Department of Commerce, National Oceanic and Atmospheric Administration National Weather Service, Federal Emergency Management Agency, American Red Cross.In areas on or near volcanoes, flash floods have also occurred after eruptions, when glaciers have been melted by the intense heat.See also 2009 Messina floods and mudslides.When weather conditions lead waters to rapidly rise, flash flooding occurs.Deep slot canyons can be especially dangerous to hikers as they may be flooded by a storm that occurs on a mesa miles away.The water that is temporarily available is often used by plants with rapid germination and short growth cycles and by specially adapted animal life.