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Much of Florida in Cone of Potential Tropical Cyclone

Potential Tropical Cyclone Nine continues to move westward into the Caribbean, and it is expected to strengthen into a tropical storm as soon as Wednesday. Tropical storm warnings now extend all the way to the Bahamas.


What You Need To Know

  • System remains disorganized as of Wednesday afternoon
  • Ninth-named storm of the Atlantic season is expected to develop soon
  • Tropical storm-force wind and heavy rain is set to hit the Caribbean
  • Impacts to the U.S. are possible this weekend

Potential Tropical Cyclone Nine has had some trouble developing into an organized system, but it is expected to become more defined on Wednesday as it quickly moves through the eastern Caribbean.

Forecast cone for Potential Tropical Cyclone Nine over the next five days.

A Potential Tropical Cyclone means, in part, that the National Hurricane Center believes the storm has a high probability of turning into a tropical cyclone, and forecast cones, tropical alerts and more can be issued before a tropical cyclone officialy develops. 

The next storm on the Atlantic hurricane list is Isaias. If it does develop, it would become the ninth-named storm of the Atlantic season and the earliest I-named storm on record. The current record for the earliest ninth storm of the season is Irene, which formed on August 7, 2005. 

If you’re wondering how exactly Isaias is pronounced, here’s a detailed guide on how to properly say it (along with all the other 2020 Atlantic storms

As of Wednesday afternoon, the poorly-defined center of Potential Tropical Cyclone Nine had passed the Leeward Islands and entered the Caribbean Sea.

The spaghetti models, a suite of computer forecast models overlayed on a map, show the storm is likely to gradually turn north as it moves westward across the Atlantic.

Spaghetti model tracks as of Wednesday afternoon.

Tropical storm warnings are in place for much of the Caribbean, including the islands of Puerto Rico, U.S. and British Virgin Islands, Anguilla, St. Martin, St. Barthelemy, Saba and St. Eustatius, St. Maarten, the Dominican Republic, Haiti, Turks and Caicos, and the southeastern Bahamas.

Heavy rainfall and gusty winds will spread to the Virgin Islands and Puerto Rico on Wednesday into Thursday. A 52 mph wind gust was recorded on Saint Thomas in the U.S. Virgin Islands on Wednesday, and San Juan, Puerto Rico recorded a 44 mph wind gust as well.

Forecast Remains Tricky

Most computer forecast models show the storm slowly strengthening into a tropical storm on Wednesday, although the long-term forecast is still highly uncertain. The track will depend on where exactly the center of the system forms, and how much it interacts with islands will affect its strength.

Also, because the storm still hasn’t formed yet and lacks a well-defined center of circulation, computer forecast models are struggling to forecast the storm – and adding to forecast uncertainty.

The current forecast cone shows the potential for a landfall on Florida this weekend. Interests in Florida and throughout the southeastern U.S. should be closely monitoring this system.

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