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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Sat Sep 18 2021

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

The National Hurricane Center is issuing advisories on Tropical 
Storm Odette, located a couple of hundred miles south-southeast of 
Nantucket, Massachusetts.

1. Showers and thunderstorms continue to become better organized in 
association with an area of low pressure located about 650 miles 
miles east-southeast of the northern Leeward Islands.  
Environmental conditions are expected to be conducive for further 
development during the next day or two, and a tropical depression 
or tropical storm is expected to form later today or tonight while 
the system moves toward the west-northwest at about 15 mph.  This 
system is expected to be near the northern Leeward Islands on 
Monday and Tuesday, and interests there should monitor its progress. 
Upper-level winds are likely to become less conducive for 
development when the system reaches the southwestern Atlantic by the 
early to middle part of next week.  Additional information on this 
system, including gale warnings, can be found in High Seas Forecasts 
issued by the National Weather Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...90 percent.

2. A broad area of low pressure is located over the far eastern 
Atlantic a few hundred miles south of the Cabo Verde Islands.  The 
associated shower and thunderstorm activity has become a little 
better organized since yesterday, and environmental conditions 
appear conducive for further development during the next couple of 
days.  A tropical depression could form while the system moves 
northwestward at about 10 mph to the west of the Cabo Verde 
Islands before it reaches cooler waters and stronger upper-level 
winds early next week.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...40 percent.

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

High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 
KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php

Forecaster Berg