with stronger winds than Ida, and Ida is tied with Laura, in 2020, and with the 1856 Last Island Hurricane as the strongest ever to hit Louisiana (by sustained winds). Only four hurricanes (all Cat 5s) have made landfall in the contiguous U.S. Katrina, the most expensive weather disaster in world history, at $176 billion, caused between 1,085 and 1,387 deaths. That day was also the 16 th anniversary of Hurricane Katrina’s devastating landfall in Louisiana and Mississippi in 2005. For the second year in a row, Louisiana suffers a record-strength hurricane landfallĬategory 4 Hurricane Ida struck a catastrophic blow on Louisiana on August 29, making landfall at the key oil industry hub of Port Fourchon with 150 mph winds and a central pressure of 930 mb. (Image credit: NOAA/RAMMB/Colorado State University) 3. At the time, Ida had top winds of 65 mph and was about to make landfall in Cuba, on its way to a devastating category 4 landfall in southeastern Louisiana. Visible satellite image (with lightning) of Tropical Storm Ida at 9:41 a.m. averaged three landfalling tropical storms (with one a hurricane) per year. Third place is held by 1915-1916, with 13 landfalls. The two-year period 2020-2021 had a truly astonishing 19 landfalls in the contiguous U.S., six times the average for a two-year period, and beating the previous two-year landfall record of 15, set in 2004-2005. landfalls in 2021 is the third highest on record, behind 2020 (11) and 1916 (nine). in 2021 (though one could argue that the first named storm to hit the U.S., Claudette in southeastern Louisiana on June 19, did not count as a landfall, since it wasn’t named until it was centered over land). landfalls in two yearsĮight named storms made landfall in the U.S. The trend (blue line) is decidedly upwards. Number of named Atlantic storms lasting two days or less, 1968-2021. Among those tropical cyclones, though, the proportion that reach Category 4 or 5 will very likely increase. According to this year’s Sixth Assessment Report from the Intergovernmental Panel on Climate Change, the global frequency of tropical cyclones will likely hold steady or decrease as global warming continues. No link between warming of the oceans from increased greenhouse gases and the observed increase in the number of Atlantic named storms has been firmly established. (Note that these subtropical storms were numbered rather than named until 2004’s Subtropical Storm Nicole.)Īs explained in a post here earlier this year, improved technology has allowed the identification of weak, short-lived tropical cyclones that would have escaped detection in previous years. This ties a record set in 2007 for the most “shorties” since 1968, when the National Hurricane Center began tracking subtropical storms and counting them in seasonal totals of activity. However, nine of this year’s storms were “shorties” – named storms that lasted two days or less. The 21 named storms of 2021 were the third highest on record, behind only 2020 (30) and 2005 (28). Perhaps the most remarkable trait of the 2021 Atlantic hurricane season is that for the second year in row, the entire alphabetical list of names for storms was exhausted. Second consecutive year to run through the entire alphabet (Image credit: National Hurricane Center) 1. Preliminary track map for the 2021 Atlantic hurricane season. East Coast August 10-17.ĭigging beyond these numbers, we’ve come up with a list of the top-10 most unusual things about the Atlantic hurricane season of 2021: Figure 1. July 7-9, killing one person and causing $1.2 billion in damage, and Tropical Storm Fred, with $1.3 billion in damage during its trek up the U.S. Two other hurricanes generated more than $1 billion in damage: Hurricane Elsa, which affected the eastern U.S. One hurricane will surely get its name retired – Ida, with $64.5 billion in damage and 96 deaths, ranking as the fifth most costly weather disaster in world history, according to NOAA.
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