Atlantic hurricane season ends up as more costly than the record-breaking one in 2020

Il 2021 Stagione degli uragani atlantici, just like the 2020 stagione, was one for the record booksbut for different reasons.

The biggest similarity was the high number of named storms. Il 2021 season became only the third in history to use all of the names on the rotating seasonal list (the previous years were 2020 e 2005).
We ended the season with 21 chiamato tempeste, 7 uragani, e 4 grandi uragani (Categoria 3 or higher). During an average year there would be 14 chiamato tempeste, 7 uragani, e 3 grandi uragani. This year met or exceeded each of those categories, ed esso was forecast to be that way. The Atlantic hurricane season runs from June 1 to November 30.
    There were four major hurricanes this season: Grazia, Ida, Larry, e Sam. The strongest two were Ida and Sam, which both reached Category 4 forza. Grace and Larry peaked as Category 3 tempeste.

      The first half of the season was off to the racesas the US was impacted by eight named storms: Claudette, Danny, Elsa, Fred, Henri, Ida, Mindy, and Nicholas.
        Poi, ad un tratto, the world’s oceans became eerily quiet. After September 25 the Atlantic and the rest of the world would struggle to produce a named storm.
        That was not what meteorologists expected.
          The globe has had no major (Categoria 3+, max winds >=111 mph) hurricane/typhoon/cyclone formations since September 25. All other hurricane seasons in the satellite era (da 1966) have had at least two global major hurricane formations between September 26 – November 19,Phil Klotzbach, a research scientist at Colorado State University, disse in a tweet.
          Both last year and this year La Niña conditions were observed during the last several weeks of the season, which typically favors late season tropical activity. 2020 saw three named storms in November (E, Theta, and Iota) e 2021 saw just one (Wanda) during the first few days.
          How this hurricane season ended marks one of the biggest differences between this year and last.
          Klotzbach explained that usually La Niña weakens or limits vertical wind shear, but surprisingly there was quite elevated wind shear in the Caribbean in October and Novemberthe focal region for storms late in the seasonand that led to a quiet latter part of the 2021 Stagione degli uragani atlantici.
          While an active season was predicted, it’s impossible to know in advance exactly where each storm will go and what kind of damage it may cause.
          UN “cattivo” season is all about perspective. Central American countries may consider this to have been a “bene” year since not a single named storm hit any part of the region. Nel 2020, Central America was hit by three named storms, two of which were major hurricanes.
          In the US, the state of Louisiana can’t seem to catch a break. Nel 2020, the Pelican State was impacted by five named storms: Cristobal, Laura, Marco, Delta and Zeta. This year the state was impacted by three named storms: Claudette, Ida and Nicholas.
          Nel 2020 more hurricanes made landfall in the US, but this year the storms cost over $ 20 billion more.

          Billions in damage

          While only one major hurricane made landfall across the US (Ida), a total of four named storms left behind al di sopra di $ 1 miliardi in damage each: Tempesta tropicale Elsa, Tropical Storm Fred, Hurricane Ida, and Hurricane Nicholas.
          Ida alone exceeded the cost in damage of all seven billion-dollar tropical cyclones that made landfall across the US in 2020, including hurricanes like Laura, Delta, and Zeta.
          “Ad oggi, Hurricane Ida is the costliest disaster this yearexceeding $ 60 miliardi,” secondo la National Oceanic and Atmospheric Administration. “Ida already ranks among the top-five most costly hurricanes on record for the US since 1980.
          This Louisiana family lost their mom in Hurricane Ida. Qui's why they aren't going anywhere


            This Louisiana family lost their mom in Hurricane Ida. Here’s why they aren’t going anywhere


          This Louisiana family lost their mom in Hurricane Ida. Here’s why they aren’t going anywhere 03:28

          Ida was the strongest Atlantic hurricane of the year to make landfall with maximum sustained winds of 150 mph when it struck near Port Fourchon, Louisiana, in agosto 29. It was one of only three hurricanes to ever make landfall in the state of Louisiana with winds of 150 mph, the most recent being Laura from 2020.
          Grand Isle, Louisiana took a direct hit with 100% of its homes damaged and nearly 40% were nearly-to-completely destroyed,” according to NOAA. “There was heavy damage to the energy infrastructure across southern Louisiana causing widespread, long duration interruzioni di corrente to millions of people.
          In the following days the remnants of Ida moved to the Northeast and combined with a frontal system, delivering extreme rainfall rates and flash flooding, inundating streets, homes and neighborhoods.
          Flash flood emergencies were declared in New Jersey and New York. Almeno 55 persone sono morte across New York, New Jersey, Connecticut, Maryland, Pennsylvania and Virginia.

          This season’s quirks

          The strongest storm of the season didn’t hit land but video was captured from inside it.
          Hurricane Sam, like Ida, also reached Category 4 strength with maximum sustained winds of 150 mph. Sam remained a Category 4 hurricane for 4.5 days and generated the fifth-highest accumulated cyclone energy (ASSO) recorded in the satellite era.
          ACE is integrated metric accounting for storm intensity and duration,” Klotzbach tweeted. “Sam was a long-lived, intense hurricane.
          fortunatamente, unlike Ida, Sam remained out over the open waters of the Atlantic and never made landfall.
          Sam’s long life, of over 11 days as a hurricane, allowed a research drone to be sailed into it, e, per la prima volta, per transmit video from inside a major hurricane at ocean level.
          Watch how Hurricane Sam was filmed like never before


            Watch how Hurricane Sam was filmed like never before


          Watch how Hurricane Sam was filmed like never before 02:27

          A couple of other storms made some meteorological records.
          Tropical Storm Ana formed in a unique area of the Atlantic Ocean. Nell'ultimo 100 anni, no named storm had ever developed east of Bermuda in the month of May. Tropical Storm Ana broke that record. Tipicamente, storms during this month form over the eastern Gulf of Mexico, western Caribbean Sea and near the southeastern US coast.

          Another unique storm was Subtropical Storm Teresa. Reports of subtropical storms are not uncommon, especially in the 21st century, thanks to advanced technology. What is uncommon is for a storm to remain subtropical for its entire life, never transitioning to “tropicale” stato.
          Teresa was also extremely short-lived, at only 24 ore. Subtropical Storm Teresa formed on Friday, settembre 24, a 5 p.m. Atlantic Standard Time. Esattamente 24 ore dopo, the NHC issued its final advisory as Teresa became a remnant, low-pressure system.

            Ida will likely be the only name on the retired list this year, despite there being three other major hurricanes, simply because of the amount of damage and fatalities caused. La lettera “io” already has more retired names than any other letter in the alphabet.
            There are already 12 retired storm names that start with the letter “io”, and Ida will likely become the 13th.

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