A normal season is usually 12. And while this season ends on November 30, tropical storms may continue.
The extremely active 2020 Atlantic hurricane season is drawing to a close with a record of 30 storms with its own name.
Although the official hurricane season ends on November 30, tropical storms may continue to develop after that day, the NOAA, the US meteorological agency, warns in a statement.
NOAA’s seasonal hurricane forecasts accurately predicted a high probability of a season above normal with a great chance that she is extremely active.
In total, the 2020 season produced 30 named storms (maximum winds of 62 kilometers per hour or more), of which 13 became hurricanes (maximum winds of 119 kilometers per hour or more), including six major hurricanes (maximum winds of 178 kilometers per hour or more). This is the largest number of recorded storms, surpassing 28 in 2005, and the second highest number of hurricanes on record.
The 2020 season advanced at an early and rapid pace with a record nine named storms from May to July, then quickly exhausted the Atlantic list of 21 names when Tropical Storm Wilfred formed on September 18.
For the second time in history, the greek alphabet was used for the remainder of the season, extending to the ninth name on the list, Iota.
“The 2020 Atlantic Hurricane Season sped up quickly and he broke records across the board, “said Neil Jacobs, Acting NOAA Administrator.
This is the fifth year in a row with an above-normal Atlantic hurricane season, with 18 above-normal seasons out of the last 26.
This increase in hurricane activity is attributed towarm phase of the Atlantic Multi-Decade Oscillation (AMO), which began in 1995, and has favored more, stronger and longer-lasting storms since then.
These active eras for Atlantic hurricanes have historically lasted between 25 and 40 years. An average season has 12 named storms, six hurricanes, and three major hurricanes.
“As we correctly predicted, an interrelated set of atmospheric and oceanic conditions linked to warm AMO was present again this year. These included warmer than average Atlantic sea surface temperatures and an africa monsoon stronger west, along with much weaker vertical wind shear and wind patterns coming from Africa that were more favorable for storm development, “said Gerry Bell, chief forecaster of seasonal hurricanes at the Center for Climate Prediction of the United States. NOAA.
“These conditions, combined with La Niña, helped make this extremely active hurricane season possible and without precedents“he added.
This historic hurricane season saw record water levels in several places, including the Gulf Coast where Hurricane Sally brought water levels down. Taller observed since Hurricane Katrina in 2005.
This season may officially end on November 30, but it is still possible for them to unfold additional storms.