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Three Systems to Watch in the Atlantic

Gordon may be gone, but there's no doubt the heart of hurricane season is here. Florence is a potential hurricane threat to the Mid-Atlantic states next week, and two other tropical waves are likely to develop behind it this weekend. One, in particular, could - emphasis on the word “could” - be a concern to Florida in about ten days.

Florencebecame the season's first major hurricane Wednesday, but has since weakened to a tropical storm due to strong winds aloft interfering with its circulation. Those winds, often referred to as wind shear, are forecast to relax this weekend when the National Hurricane Center expects Florence to strengthen again into a hurricane. Florence could even become a major hurricane (again) as it moves in a general west-northwest direction and comes close to Bermuda Monday.

 

Official forecast from the National Hurricane Center on Florence, as issued 11 am Friday.
Official forecast from the National Hurricane Center on Florence, as issued 11 am Friday.

The National Hurricane Center has expressed a reasonable amount of confidence in the forecast track and strength of Florence over the next five days, but in a recent advisory Hurricane Specialist Eric Blake said the uncertainty beyond day 5 is “very large”. He went on to caution residents along the U.S. East Coast that it was too soon to determine “what, if any,” impacts Florence could have in those areas. Regardless of Florence's eventual track, large ocean swells are likely to arrive along the beaches of the Mid-Atlantic states, resulting in life-threatening surf and rip currents.

 

Early look at potential paths Invest 92 may take in the next five days.
Early look at potential paths Invest 92 may take in the next five days.

A vigorous tropical wave located about 500 miles west of the Cabo Verde Islands is likely to become the Atlantic Basin's eighth named storm by Saturday. The disturbance, labeled for the sake of forecast modeling as Invest 92, has the potential to become a long-lived tropical storm or hurricane over the next week to ten days as it moves slowly to the west. It is too early to speculate whether Invest 92 will become a threat to land, but it is worth noting that more than half of the runs from two reliable forecast models (the European and GFS) show it tracking into the eastern Caribbean by late next week. There is no consensus, however, on how organized or strong it might be at that time.

A third area of low pressure, now classified by the National Hurricane Center as Potential Tropical Cyclone Eight (PTC Eight), was moving away from the west coast of Africa Friday morning, already producing intense thunderstorm activity and showing signs of organization. PTC Eight is also forecast to become a tropical storm by Saturday, and Tropical Storm Warnings have been issued for the Cabo Verde Islands. Long range forecast data on this system also shows a general westward movement into the central Atlantic over the next five days, then diverging greatly on whether Invest 93 will track all the way across the Atlantic or turn north.

Copyright 2020 WUFT 89.1. To see more, visit .

Jeff Huffman is Chief Meteorologist at the University of Florida in Gainesville. In addition to his full-time position at the university's radio and television stations, WUFT-FM/TV and WRUF-TV, the latter of which he co-founded, Huffman also provides weather coverage to public radio stations throughout Florida
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