Three simultaneous hurricanes

By: SLU , 9:29 PM GMT on September 16, 2010

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Something unusual happened in the tropics on Thursday: three hurricanes were swirling at the same time in Igor, Julia and Karl.
This occurred a day after an extremely rare tropical two-step: On Wednesday, Igor and Julia both blossomed into Category 4 systems on Wednesday, first time that has happened in 84 years.
The last time three hurricanes were simultaneous in existence was in 1998, when there actually were four hurricanes alive at once: Georges, Ivan, Jeanne and Karl were all active on Sept. 26 of that year.
Short of that foursome, Georges, Jeanne and Karl were simultaneously swirling on Sept. 25, 26 and 27 of 1998.
Coincidentally, the same basic set of storm names was used in 1998 as in 2010, although some of the 1998 names have since been retired.
Also, somewhat coincidentally, many experts expected 2010 to be similar to 1998 in terms of the overall number of storms — because the atmospheric conditions are similar.
(In 1998, there were 14 named storms, including 10 hurricanes.)
Dennis Feltgen, hurricane center spokesman, said since hurricane records were started in 1851, there have been eight years, where three hurricanes simultaneously churned in the Atlantic basin: 1893, 1926, 1950, 1961, 1967, 1980, 1995, and 1998.
“We can now add 2010 to the list,” he said.

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4. WunderAlertBot (Admin)
9:03 PM GMT on August 02, 2013
SLU has created a new entry.
3. nigel20
7:03 PM GMT on July 27, 2013
I think that I have to agree with you, seeing that the peak of this season is yet to come. Thanks for the above info, SLU...I really appreciate it.
Member Since: November 6, 2010 Posts: 12 Comments: 8472
2. SLU
4:31 PM GMT on July 27, 2013
The numbers suggests that all 13 seasons since 1950 with development east of the Caribbean before August 1st had an average ACE of 158 and 10 out of the 13 seasons had an ACE of at least 135 which is more than both 2011 and 2012 which both featured 19 named storms. I think we are still set for a year with anywhere from 15 - 19, 6 - 10, 3 - 5 and an ACE of 150 - 180

The conditions are still very favourable for a major Cape Verde season. If the conditions were normal, Chantal and Dorian would never develop and to get 2 50kt tropical storms forming east of 50 west in July is unprecedented in the satellite era or any other era since reliable hurricane records started being kept. The demise of Dorian means nothing as far as the season is concerned since the climatological odds were always against it. What's more important is the actual formation of Dorian so far in the EATL in July which is the second farthest east for TS development in July after MH Bertha 2008. That says a lot about the conditions that are present this year.


























Member Since: July 13, 2006 Posts: 13 Comments: 5367
1. hurricanemichael
2:24 AM GMT on August 23, 2011
Just wondering who this is. I just graduated from SLU w/ my PhD and thought it was interesting to see someone from there on this site.
Member Since: June 14, 2008 Posts: 0 Comments: 0

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