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Non-Tropical Lows out at sea may acquire subtropical or tropical characteristics this week
Days since last H. Landfall - US: Any 38 (Dorian) , Major: 369 (Michael) Florida - Any: 369 (Michael) Major: 369 (Michael)
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E at 23 mph
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General Discussion >> 2019 Forecast Lounge

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craigm
Storm Tracker


Reged: Wed
Posts: 319
Loc: Palm City, Florida
Central American Gyre
      #100752 - Mon Sep 30 2019 08:53 PM

Looks like activity might be increasing. We finally got some rain in south central Florida today as we have been in the grip of high pressure for a while. 4" of rain recorded, here in Palm City for entire month of Sept. Way below average of 10". I recorded 16" on my rain gauge in August. NHC now looking at two areas of interest SE Bahamas and S of Cuba. Western Caribbean is where storms tend to form this time of year as pressures lower in this part of the globe near the Central American Gyre. From Matt Gray NBC in Fort Meyers 'If you haven't heard of this term before, you're not alone. Research from the State University of New York only coined the term "Central American Gyre" in 2017. Central American Gyres are broad areas of counterclockwise winds rotating around a weak zone of low pressure. The center of the gyre can form over land or water, but is almost always within 600 miles of the coast of Central America. These gyres are many hundreds of miles across and influence the weather across the entire western Caribbean and Gulf of Mexico, including Florida. These gyres typically move slowly from southeast to northwest across Central America and cause heavy rain and flooding. One or two gyres form per year on average, most often in May through June and September through November '. Models are starting to hint at increased activity in this area with GFS being most aggressive about 2 weeks out.

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