The island of Barbuda is currently experiencing storm-force winds and has lost power. Residents are urged to take necessary precautions and seek shelter until the storm passes.

Although Antigua is in the clear, Barbuda is now in Tammy’s direct path.

Below is the 8pm summary

LOCATION…17.5N 61.6W

ABOUT 15 MI…25 KM ESE OF BARBUDA

ABOUT 30 MI…50 KM NNE OF ANTIGUA

MAXIMUM SUSTAINED WINDS…85 MPH…140 KM/H

PRESENT MOVEMENT…NNW OR 335 DEGREES AT 10 MPH…17 KM/H

MINIMUM CENTRAL PRESSURE…989 MB…29.20 INCHES

WATCHES AND WARNINGS

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CHANGES WITH THIS ADVISORY:

The government of Antigua and Barbuda has discontinued the

Hurricane Warning for Montserrat, St. Kitts, and Nevis.

The government of the Netherlands has discontinued the Hurricane

Watch for Saba and St. Eustatius.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for…

* Antigua, Barbuda, and Anguilla

* St. Maarten

* St. Martin and St. Barthelemy

A Tropical Storm Warning is in effect for…

* Saba and St. Eustatius

A Tropical Storm Watch is in effect for…

* British Virgin Islands

A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within the next 24 hours.  Preparations to protect life and property should be rushed to completion.

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area.

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

For storm information specific to your area, please monitor products issued by your national meteorological service.

DISCUSSION AND OUTLOOK

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At 800 PM AST (0000 UTC), the center of Hurricane Tammy was located near latitude 17.5 North, longitude 61.6 West. 

Tammy is moving toward the north-northwest near 10 mph (17 km/h) and this general motion is expected through Sunday, followed by a turn toward the north on Monday. 

On the forecast track, the center of Tammy will move near or over portions of the Leeward Islands tonight, and then move north of the northern Leeward Islands by Sunday afternoon.

Maximum sustained winds are near 85 mph (140 km/h) with higher gusts.  Slow strengthening is possible during the next few days.

Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km).

The minimum central pressure estimated from Air Force and NOAA Hurricane Hunter aircraft observations is 989 mb (29.20 inches).

HAZARDS AFFECTING LAND

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Key messages for Tammy can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC and on the web at hurricanes.gov/text/MIATCDAT5.shtml

WIND:  Hurricane conditions are expected over portions of the northern Leeward Islands tonight. 

Tropical storm conditions are expected within the tropical storm warning areas through tonight. Tropical storm conditions are possible in the British Virgin Islands tonight and Sunday.

RAINFALL: Tammy is expected to produce the following storm total rainfall: Leeward Islands: 4 to 8 inches with maximum amounts of 12 inches