national hurricane center

HURRICANE CENTER: Tropical Depression Forms, Tropical Wave Developing


New System On Early Florida Trek


BOCA RATON, FL ( — Tropical Depression 15 is now being watched by forecasters at the National Hurricane Center, as a new system is rolling off the coast of Africa.

Forecasters are now monitoring three active systems. The newest system — marked by a yellow “x” above near Africa — has a 30 percent chance of development. It’s initial 5-day path brings it on a course that Florida should watch. Five day paths often change quite a bit.


The next two storm system names are Nana and Omar. NOAA is calling for 25 named storms this season.

Here is the 2AM forecast from the National Hurricane Center:

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Tue Sep 1 2020

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Tropical 
Depression Fifteen, located a little over a hundred miles south of 
Cape Hatteras, North Carolina. 

1. A seemingly well-organized cluster of showers and thunderstorms 
associated with a tropical wave is moving quickly westward across 
the central Caribbean Sea, but satellite-derived wind data from a 
few hours ago again showed that the system has not developed a 
closed surface wind circulation.  The wave is, however, producing 
an area of winds near tropical storm force south of the coast of 
Haiti, which will move near or south of Jamaica later this morning. 
Environmental conditions are expected to become a little more 
conducive for development, and a tropical depression is likely to 
form during the next couple of days before the system reaches 
Central America Wednesday night.  Locally heavy rains and gusty 
winds are possible on Jamaica today, and interests there, as well as 
in northern Nicaragua, Honduras, Belize, Guatemala, and the Yucatan 
Peninsula, should monitor the progress of this disturbance.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 5 days...high...70 percent.

2. A tropical wave is expected to emerge off the coast of Africa in a 
day or so. Gradual development of this system will be possible 
through the end of the week while it moves slowly westward over the 
far eastern tropical Atlantic Ocean.
* Formation chance through 48 hours...low...near 0 percent. 
* Formation chance through 5 days...low...30 percent.

Public Advisories on Tropical Depression Fifteen are issued under 
WMO header WTNT35 KNHC and under AWIPS header MIATCPAT5.
Forecast/Advisories on Tropical Depression Fifteen are issued under 
WMO header WTNT25 KNHC and under AWIPS header MIATCMAT5.

Forecaster Berg

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