SUMMARY OF 500 PM AST…2100 UTC…INFORMATION

LOCATION…13.0N 51.7W

ABOUT 625 MI…1005 KM E OF THE WINDWARD ISLANDS

MAXIMUM SUSTAINED WINDS…40 MPH…65 KM/H

PRESENT MOVEMENT…W OR 275 DEGREES AT 23 MPH…37 KM/H

MINIMUM CENTRAL PRESSURE…1007 MB…29.74 INCHES

The government of Barbados has issued a Tropical Storm Watch forBarbados.  The government of Dominica has issued a Tropical Storm Watch for Dominica. 

The government of France has issued a Tropical Storm Watch for Martinique and Guadeloupe.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Watch is in effect for…

* Barbados

* Dominica

* Martinique and Guadeloupe

A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours.

At 500 PM AST the center of Tropical Storm Tammy was located near latitude 13.0 North, longitude 51.7 West. 

Tammy is moving toward the west near 23 mph (37 km/h).  A westward motion at a slower forward speed is expected through Thursday. 

A turn toward the west-northwest is forecast by Thursday night, followed by a turn toward the northwest Friday night or Saturday.  On the forecast track, the center of Tammy will move near or over the Leeward Islands Friday and Saturday.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Gradual strengthening is forecast during the next couple of days.

Tropical-storm-force winds extend outward up to 140 miles (220 km) to the northeast of the center.

The estimated minimum central pressure is 1007 mb (29.74 inches