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Hurricane season 2021 set multiple records and was very unusual

The Atlantic hurricane season 2021, like the 2020 season, set the record for a variety of reasons. The greatest similarity was in the large number of named storms. The 2021 season was the third season in history to use all the names from the updated seasonal roster (the previous years were 2020 and 2005). But these are not all records, what else has achieved this hurricane season, the publication said. CNN.

Photo: Shutterstock

In the 2021 hurricane season, there were 21 storms, 7 hurricanes, and 4 severe hurricanes (Category 3 and higher). On average, there are 14 named storms, 7 hurricanes and 3 major hurricanes per year. This season has met or exceeded each of these categories. Hurricane season in the Atlantic runs from June 1 to November 30.

There have been four major hurricanes this season: Grace, Ida, Larry, and Sam. The two strongest were Ida and Sam, both reaching Category 4. Grace and Larry peaked as a Category 3 storm.

The first half of the season was active - eight named storms hit the USA: Claudette, Danny, Elsa, Fred, Anri, Ida, Mindy and Nicholas.

Then, suddenly, the world's oceans became eerily quiet. After September 25, activity subsided and never recovered. This is not what the meteorologists expected.

“Since September 25, there have been no major hurricanes / typhoons / cyclones on the globe. In all other hurricane seasons in the satellite era (since 1966), there have been at least two global major hurricane formations between September 26 and November 19, ”tweeted Phil Klotzbach, a research fellow at the University of Colorado.

Both last year and this year, La Niña conditions have been observed during the last few weeks of the season, usually favoring tropical activity at the end of the season. In 2020, there were three named storms in November (Eta, Theta and Iota) and in 2021 there was only one (Wanda) for the first few days.

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The way this hurricane season ended marks one of the biggest differences between this and last year.

Klotzbach explained that typically La Niña will attenuate or limit vertical wind shear, but surprisingly there was quite high wind shear in the Caribbean in October and November and this resulted in a quiet second half of the 2021 Atlantic hurricane season.

Although an active season has been predicted, it is impossible to know in advance where each storm will go and how much damage it could cause.

The countries of Central America may consider this year a "good" year, since none of the named storms hit any part of the region. In 2020, Central America was hit by three named hurricanes, two of which were severe hurricanes.

In the United States, Louisiana seems to be suffering the most. In 2020, the state was hit by five named storms: Cristobal, Laura, Marco, Delta, and Zeta. This year, the state was hit by three named hurricanes: Claudette, Ida, and Nicholas.

More hurricanes hit the U.S. in 2020, but hurricanes have cost more than $ 20 billion this year.

Billions of damage

While only one major hurricane hit the United States (Ida), a total of four named storms caused more than $ 1 billion in damage each: Tropical Storm Elsa, Tropical Storm Fred, Hurricane Ida, and Hurricane Nicholas.

Ida alone surpassed the billions of dollars in damage from all seven tropical cyclones that hit the U.S. in 2020, including hurricanes like Laura, Delta and Zeta.

“Hurricane Ida is the most costly disaster to date this year, with more than $ 60 billion in damage,” according to the National Oceanic and Atmospheric Administration (NOAA). "Ida has been one of the five most costly hurricanes in the US since 1980."

Ida was the strongest Atlantic hurricane of the year, hitting land in a maximum wind speed of 150 miles (241 km) per hour when it hit near Port Fourchon, Louisiana on August 29. It was one of three hurricanes ever to land in Louisiana with winds of 150 miles (241 km) per hour, including the 2020 Laura.

“The city of Grand Isle, Louisiana was hit directly, with 100% of its homes damaged and nearly 40% almost completely destroyed,” NOAA said. "There was extensive damage to the energy infrastructure in southern Louisiana, resulting in massive and prolonged power outages for millions of people."

You may be interested in: top New York news, stories of our immigrants and helpful tips about life in the Big Apple - read it all on ForumDaily New York.

In the days that followed, the remnants of Ida moved northeast and merged with a frontal storm, resulting in extreme rain and flash floods that flooded streets, houses and neighborhoods.

Flood emergencies have been declared in New Jersey and New York. At least 55 people have died in New York, New Jersey, Connecticut, Maryland, Pennsylvania and Virginia.

This season's quirks

The worst storm of the season did not hit the ground, but the video was filmed from the inside.

Hurricane Sam, like Ida, also reached Category 4 strength with a maximum wind resistance of 150 miles (241 km) per hour. Sam remained a Category 4 hurricane for 4,5 days and produced the fifth highest stored cyclone energy (ACE) in the entire satellite era.

“ACE is an integrated metric that measures the intensity and duration of a storm,” Klotzbach explained on Twitter. "Sam was a long-lived violent hurricane."

Fortunately, unlike Ida, Sam stayed above the open waters of the Atlantic and never came ashore.

On the subject: What to do if a hurricane caught you in the car

Sam was a hurricane for over 11 days, allowing a research drone to be launched into him and for the first time broadcast video from inside a violent hurricane from the ocean.

Several other storms have hit some meteorological records.

Tropical Storm Ana formed in a unique area of ​​the Atlantic Ocean. For the past 100 years, there has not been a named storm east of Bermuda in the month of May.

Tropical Storm Ana broke that record. Storms typically form this month over the eastern Gulf of Mexico, the western Caribbean, and off the southeastern United States.

Another unique storm was the Subtropical Storm Teresa. Subtropical storm reports are not uncommon, especially in the 21st century, thanks to advanced technology. What is unusual is that the storm has been subtropical throughout its existence, never moving into "tropical" status.

Teresa also lived for a very short time, only 24 hours. Subtropical storm Teresa formed on Friday, September 24, at 17:00 pm and exactly 24 hours later turned into the remnant of the storm.

Ida will likely be the only name on the dropout list this year, despite three other major hurricanes, simply because of the damage and casualties. The I already has more unused names than any other letter in the alphabet.

There are already 12 unused storm names that start with the letter "I" and Ida will likely become the 13th.

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In the U.S. records hurricane season
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