Portal:Tropical cyclones/Featured article/Hurricane Katrina

Hurricane Katrina near peak strength on August 28, 2005.

Hurricane Katrina was the costliest (tied with Hurricane Harvey) and one of the deadliest hurricanes in the history of the United States. It was the eleventh named storm, fifth hurricane, third major hurricane, and second Category 5 hurricane of the 2005 Atlantic hurricane season, and was the seventh-strongest Atlantic hurricane ever recorded.

Katrina formed over the Bahamas on August 23, 2005, and crossed southern Florida as a moderate Category 1 hurricane before strengthening rapidly in the Gulf of Mexico and becoming one of the strongest hurricanes ever recorded in the Gulf. The storm weakened considerably before making its second landfall as a Category 3 storm on the morning of August 29 in southeast Louisiana.

It is possible that Katrina was the largest hurricane of its strength to approach the United States in recorded history; its sheer size caused devastation over 100 miles from the center. The storm surge caused major or catastrophic damage along the coastlines of Louisiana, Mississippi, and Alabama, including the cities of Mobile, Alabama, Biloxi and Gulfport, Mississippi, and Slidell, Louisiana. Levees separating Lake Pontchartrain from New Orleans, Louisiana were breached by the surge, ultimately flooding roughly 80% of the city and many areas of neighboring parishes. Severe wind damage was reported well inland. Katrina is estimated to be responsible for $125 billion (2005 US dollars) in damages, making it the costliest hurricane in U.S. history. The storm killed at least 1,836 people, making it the deadliest U.S. hurricane since the 1928 Okeechobee Hurricane.

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