- Sometimes, tropical improvement happens after hurricane season formally ends.
- This was the case in some latest years.
- In this document-setting season, we won’t rule out improvement in December or later.
The 2020 Atlantic hurricane season won’t essentially finish when December begins, doubtlessly including to a document variety of storms.
At this level, hurricane fatigue is totally comprehensible. Thirty named storms, 13 of which grew to become hurricanes, six of which strengthened to Category 3 or stronger – multi functional hurricane season.
We’ve blown previous the earlier document for storms in any season – 28 in 2005 – and have gone deeper into the Greek alphabet for naming storms than ever earlier than after exhausting the first 21 names of the 2020 listing.
We’ve had a pair of hurricanes – Laura after which Delta – landfall in southern Louisiana simply 14 miles aside, and in Nicaragua – Eta and Iota – 15 miles aside in the similar season.
Ein Dokument 12 storms have made a mainland U.S. landfall.
But, unwelcome as it might be at the finish of a document-breaking season, there’s historic priority for “postseason storms.”
The Season Doesn’t Capture All Storms
Officially, the Atlantic hurricane season runs from June 1 by way of Nov. 30. That time-frame was chosen to embody 97% of all Atlantic tropical storms and hurricanes, in response to NOAA’s Hurricane Research Division.
But what about the different 3%?
You can see in the NOAA graph above that a small variety of tropical storms and even hurricanes have occurred primarily in May and December, but additionally in each different month exterior of hurricane season.
Past Decembers, Januaries and Februaries
According to NOAA’s Best Track Database, 10 storms have fashioned in December, and one other 4 storms fashioned in both January or February from 1950 by way of 2019.
Four of these postseason storms grew to become hurricanes, most lately Hurricane Alex in January 2016.
As seen in the monitor map beneath, most of those storms in the winter months occurred in the central Atlantic Ocean far from land.
In 2003, a pair of tropical storms, Odette and Peter, fashioned inside three days of one another in early December. Odette was the first December tropical storm to kind in the Caribbean Sea.
The prolific 2005 season generated its last storm, Zeta, on Dec. 30, lasting till Jan. 7 in the central Atlantic. Earlier in December 2005, Epsilon grew to become a hurricane in the central Atlantic.
Did Any Affect Land?
After November, it is extraordinarily troublesome to get a tropical storm to kind anyplace close to the mainland U.S., a lot much less have it pulled towards the mainland.
The winter jet stream normally kicks into excessive gear in the Lower 48 states, ushering in colder, drier air to the continental U.S. and in addition cooling water in the Gulf of Mexico and off the East Coast.
Since 1950, just one such postseason storm affected the mainland U.S., a freak early February 1952 tropical storm which brushed throughout the Florida Peninsula.
But a variety of these postseason storms impacted different land areas.
Alex in January 2016 made landfall in the Azores as a tropical storm.
Hurricane Alice backed southwestward over the northern Leeward Islands simply after New Year’s Day 1955. Homes, companies and crops had been broken or destroyed in Anguilla, Saba, Saint Barthélemy, Sint Eustatius and Saint Kitts.
As this predated the period of satellites, meteorologists needed to rely on ships and studies from different islands to piece collectively the improvement and method of this small hurricane.
The aforementioned Tropical Storm Odette in 2003 and in addition Tropical Storm Olga in 2007 every plowed by way of Hispaniola, triggering lethal flash flooding. Olga claimed no less than 22 lives in the Dominican Republic.
The Weather Company’s main journalistic mission is to report on breaking climate information, the atmosphere and the significance of science to our lives. This story doesn’t essentially symbolize the place of our guardian firm, IBM.