Invest 99L Poses Threat to US Mainland

Invest 99L is an area of disturbed weather and thunderstorms currently moving west-northwestward at about 20 mph just east of the Leeward Islands. The storm has already defied some expectations that further organization would stall until the area of low pressure moved closer to Hispaniola, and has prompted an Air Force Reserve Hurricane Hunter aircraft trip into the storm later this morning. In the short term, a bit of a model consensus has been reached in terms of whether will the storm go north or south of Hispaniola, and over the past several days, more and more computer models have moved their tracks further to the north of the cyclone-killing mountains in Haiti and The Dominican Republic. The most likely storm track is as follows;  the storm will likely go north of Hispaniola and into the Bahamas before either being pulled north, or continuing on a track west over Florida (Sorry for the uncertainty, it’s still a bit early…) The most likely tracks do have one thing in common beyond the short term track though; most suggest landfall of at least a Tropical Depression somewhere on the East Coast of The United States. Whether the storm traverses Florida and makes another landfall somewhere in the Gulf before being pulled back into The Atlantic, or whether the storm moves up The East Coast, The United States will likely be impacted in some way, shape, or form by what is now Invest 99L.  It is important for those on The East Coast of The United States as well as those on the west coast of Florida to monitor the situation as it progresses and to stay tuned to updates from the National Hurricane Center.

Here's a look at The Tropical Atlantic Basin Satellite Imagery. 
Tropical Depression Fiona is north of The Leeward Islands, 
Invest 99L is east of the Leeward Islands,
And Tropical Storm Gastone is just west of The Cape Verde Islands.

More detail regarding Computer Model variations and outcomes can be found at our Hurricane Center page, where Weather360 is currently covering Invest 99L, Tropical Storm Gastone, as well as Tropical Depression Fiona in The Atlantic.

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