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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Fri Aug 18 2017

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

The National Hurricane Center is issuing advisories on Tropical
Storm Harvey, located near Barbados.

1. Shower and thunderstorm activity associated with an area of low
pressure located about 750 miles east-northeast of the Leeward
Islands continues to show signs of organization.  While it would
take only a slight increase in organization for a tropical
depression to form later today or tonight, upper-level winds are
becoming less favorable for development.  The low is expected to
move west-northwestward at about 20 mph during the next few days,
and interests in the northern Leeward Islands should monitor the
progress of this disturbance.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 5 days...high...70 percent.

2. Shower activity has increased during the last 24 hours in
association with a tropical wave located over the far eastern
Atlantic Ocean, several hundred miles west-southwest of the Cabo
Verde Islands.  Environmental conditions are forecast to become more
favorable for some development early next week while the system
moves west-northwestward to northwestward at about 20 mph.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...40 percent.

Public Advisories on Harvey are issued under WMO header
WTNT34 KNHC and under AWIPS header MIATCPAT4.
Forecast/Advisories on Harvey are issued under WMO header
WTNT24 KNHC and under AWIPS header MIATCMAT4.

Forecaster Beven