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A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm , hurricane , or tropical storm , or by meltwater from ice and snow .
One is a flash flood watch, which means that conditions are favorable for flash flooding, and the other is a flash flood warning, meaning that a flash flood is occurring or one will occur imminently and is usually issued when there are strong weather radar echoes for an area that is prone to flash flooding. [2]
Flooding is a threat across the United States year-round. In the first few weeks of July, the dangers of flash floods have plagued the Northeast, including Vermont's worst flood in over 100 years ...
The 2009 Kentuckiana Flash Flood resulted from 3 to 6 inches (76 to 152 mm) of rain falling in less than an hour near Louisville, Kentucky, U.S. 9 September 2009: 31 heavy rain Turkish flash floods. 19 September 2009: 10 heavy rain 2009 Southeastern United States floods included flash flooding around Atlanta, Georgia, U.S. [13] 26 September ...
In the recent flash flood disaster in the southern Appalachians, intense rain fell just before Helene's arrival and produced flash flooding on its own. Hours later, Helene arrived and unloaded ...
NOAA’s Weather Prediction Center has posted a Level 2 out of 4 flash flood risk for the central Gulf Coast on Monday, including New Orleans. Download The Free Fox Weather App
A flash flood watch (SAME code: FFA; also referred as a "green box" by meteorologists) is severe weather watch product of the National Weather Service that is issued when conditions are favorable for flash flooding in flood-prone areas, usually when grounds are already saturated from recent rains, or when upcoming rains will have the potential ...
Flash flooding affects local transit. In neighboring New York, nearly 1 million people in the Suffolk County area were under a flash flood emergency early Monday, the weather service in New York ...