As is common at this time, the hurricane season and tropical storms that mainly affect North America and the Caribbean.
But this 2020 continues to do their thing, and now it gives us the news that for the second time in history are detected five simultaneously active tropical cyclones in the Atlantic Ocean.
The last time a similar phenomenon occurred occurred in 1971, when the same number of tropical storms were recorded in the Atlantic at the same time.
According to the US National Hurricane Center (NHC) the formations are Hurricane Paulette, Hurricane Sally, Tropical Storms Teddy and Vicky, and Tropical Depression Rene (which will fade in the next few hours).
For the 2nd time on record, the Atlantic has 5+ tropical cyclones (tropical depression (TD) or stronger) simultaneously: #Hurricane #Paulette, TD #Rene, Tropical Storm #Sally, Tropical Storm #Teddy and TD21. Other time was from September 11-14, 1971. pic.twitter.com/9ET1OoxE6f
– Philip Klotzbach (@philklotzbach) September 14, 2020
The eye of Paulette, which hit in the last hours Bermuda, where hundreds of people have been left without power, it will move away from the island, although strong winds, heavy rains and storm surge will continue to be felt during the day.
The hangover produced by Paulette affects the Leeward Islands, the Greater Antilles, the Bahamas, Bermuda and the east coast of the United States.
According to the National Hurricane Center, Paulette was about 105 kilometers north of Bermuda and was moving north at 22 kilometers per hour with maximum sustained winds of 155 kilometers per hour that may get even stronger.
The trajectory pattern shows Paulette as a hurricane until Friday, September 18, arcing northeast over the Atlantic.
Regarding the tropical storm Sally, the NHC predicts it will become a hurricane tonight, before making landfall somewhere between Morgan City, Louisiana and the Mississippi-Alabama border, which includes the New Orleans metropolitan area.
As of 15:00 GMT it was about 140 miles (230 km) east-southeast of the mouth of the Mississippi and had maximum sustained winds of 100 kilometers per hour.
The storm is moving west-northwest at 15 kilometers per hour and the NHC has issued storm surge advisories for a stretch of the coastline of Louisiana and Mississippi and other hurricane or tropical storm warnings, which reach coastal areas of Alabama and northwestern Florida.
As its outer bands approach the northern coast of the Gulf of Mexico, Sally it produces storm surge, hurricane intensity winds, and heavy rain.
Tropical depression Rene is in the middle of the Atlantic without posing any threat to land, while the newly formed tropical storm Teddy is still far from the Lesser Antilles, but the NHC hopes it will become a mighty hurricane in a couple of days but without posing a direct threat to land.
Teddy is about 2,015 kilometers east of the Lesser antilles, is moving west at 22 kilometers per hour and has maximum sustained winds of 65 kilometers per hour.
Why is this unusual phenomenon occurring?
“You have to be clear about something: there is no single answer to this phenomenon. What we see here is the sum of many factors that coincide to produce these five tropical storms at the same time, “British Weather Services meteorologist Jim Dale told BBC Mundo.
Dale, who wrote the book “Weather or Not,” says the cause of this incident it is not just global warming.
“This phenomenon also occurred in 1971, when global warming was barely being noticed, so the other elements that are part of the formation of hurricanes must always be taken into account,” he adds.
“Maybe this year has been so unusual with so many tropical storms that the names on the list to name these formations are already running out. There is only one left: Wilfred, “he said.
Experts say that various factors play a role in the formation of tropical cyclones.
“The heating of the water, the areas of low pressure in warm waters, the direction of the winds, the absorption of hot and cold winds that give it speed, among others”, says Dale.
For the meteorologist, this year two phenomena can be found that may have influenced the high number of tropical cyclones.
«The influence of ‘La Niña’, the current in the Pacific and of course the rising ocean temperatures, which affected some areas of the Atlantic Ocean, especially on the West coast of Africa where most of these cyclones originate, could influence this historical phenomenon, “he says.
Dale also points out that the factor of global warming it will surely affect the number of hurricanes and tropical storms that will affect this area of the planet in the future