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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Fri Sep 4 2020

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

The National Hurricane Center has issued the last advisory on 
Nana, which has dissipated near the Guatemala-Mexico border, and is 
issuing advisories on Tropical Depression Omar, located about 400 
miles east-northeast of Bermuda.

1. A non-tropical area of low pressure is located over the 
north-central Atlantic, about 600 miles south of Cape Race 
Newfoundland.  This low is expected to move north-northeastward 
near 15 mph, and some slight subtropical or tropical development of 
this system is possible before it reaches cooler waters tonight.
* Formation chance through 48 hours...low...20 percent. 
* Formation chance through 5 days...low...20 percent.

2. A broad area of low pressure located over the eastern tropical 
Atlantic several hundred miles west-southwest of the Cabo Verde 
Islands is producing disorganized showers and thunderstorms, while 
moving little.  Gradual development is possible early next week 
once the larger tropical wave located near the Cabo Verde Islands 
passes to the north of the system on Sunday.
* Formation chance through 48 hours...low...20 percent. 
* Formation chance through 5 days...medium...40 percent.

3. A tropical wave located near the Cabo Verde Islands is producing 
an extensive area of disorganized showers and thunderstorms.  
Development of this system is expected to be slow during the next 
couple of days while it moves west-northwestward at about 15 mph.  
After that, a tropical depression is more likely to form early next 
week over the central tropical Atlantic where environmental 
conditions are forecast to be more conducive for development.
* Formation chance through 48 hours...low...20 percent. 
* Formation chance through 5 days...high...70 percent.

4. Another tropical wave is forecast to move off the west coast of 
Africa over the weekend.  An area of low pressure is expected to 
form from the wave early next week.  Gradual development of this 
low is then expected, and a tropical depression could form while it 
moves generally westward over the far eastern tropical Atlantic. 
* Formation chance through 48 hours...low...near 0 percent. 
* Formation chance through 5 days...medium...40 percent.

Forecaster Pasch