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Fort Calhoun Nuclear Generating Station during flood on June 16, 2011. Lists of floods in the United States provide overviews of major floods in the United States. They are organized by time period: before 1901, from 1901 to 2000, and from 2001 to the present.
Floods in the United States (2000–present) is a list of flood events which were of significant impact to the country during the 21st century, since 2000. Floods are generally caused by excessive rainfall, excessive snowmelt, storm surge from hurricanes , and dam failure.
NOAA/USGS map of river flooding, June 29, 2006, around 1530 UTC. Note the purples and reds in the Northeastern United States. Click the image for a color key. The flooding was attributed to several weather factors that all came together over the region. The primary factor was the stalling of the jet stream just to the west of the Appalachian ...
A 100-year flood is a flood event that has on average a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. [1] A 100-year flood is also referred to as a 1% flood. [2] For coastal or lake flooding, a 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems ...
Houses along Main Street in Ste. Genevieve, Mo., are submerged up to the top of the first floor in floodwaters from the Mississippi River in this July 21, 1993 photo, during the Great Flood of 1993.
In 2015, the USGS unveiled the topoView website, a new way to view their entire digitized collection of over 178,000 maps from 1884 to 2006. The site is an interactive map of the United States that allows users to search or move around the map to find the USGS collection of maps for a specific area.
Numerous water rescues and evacuations occurred across expressways and residential areas, and caused three fatalities and one injury. Additionally, several rainfall records were broken across the three primarily affected states, and a flash flood emergency was issued for portions of the Washington–Baltimore combined statistical area.
The Red River flood of 1997 in the United States was a major flood that occurred in April 1997, along the Red River of the North in North Dakota and Minnesota.The flood reached throughout the Red River Valley, affecting the cities of Fargo, Moorhead, and Winnipeg, while Grand Forks and East Grand Forks received the most damage, where floodwaters reached over 3 miles (5 km) inland, inundating ...