Core of Hurricane Tammy just east of Dominica

Hurricane Tammy is now located about 50 miles east of Dominica as of the 8 am update from the US National Hurricane Center.  

Hurricane conditions and heavy rains are expected in portions of the Leeward Islands today and tonight.  

The NHC has made no changes to its advisories.  

SUMMARY OF WATCHES AND WARNINGS IN EFFECT: 
 
A Hurricane Warning is in effect for… 
* Guadeloupe 
* Antigua, Barbuda, Montserrat, St Kitts, Nevis, and Anguilla 
* St Maarten 
* St Martin and St Barthelemy 
 
A Hurricane Watch is in effect for… 
* Dominica 
* Saba and St Eustatius 
 
A Tropical Storm Warning is in effect for… 
* Dominica 
* Saba and St. Eustatius 
 
A Tropical Storm Watch is in effect for… 
* Martinique 
* British Virgin Islands 
 

Hurricane Tammy on October 21, 2023. (Source: NHC)

At 8 am AST (1200 UTC), the centre of Hurricane Tammy was located near latitude 15.7 North, longitude 60.6 West.  

Tammy is moving toward the northwest near 9 mph (15 km/h), and this general motion is expected to continue through tonight. A turn toward the north-northwest is forecast on Sunday, followed by a turn toward the north on Monday. On the forecast track, the centre of Tammy will move near or over portions of the Leeward Islands through early Sunday, and then move north of the northern Leeward Islands by Sunday afternoon. 
 
Maximum sustained winds are near 80 mph (130 km/h) with higher gusts. Fluctuations in intensity are possible during the next few days, but Tammy is expected to remain a hurricane while it passes near or over the Leeward Islands. 
 
Hurricane-force winds extend outward up to 25 miles (35 km) from the centrre and tropical-storm-force winds extend outward up to 125 miles (205 km). 
 
 
 
HAZARDS AFFECTING LAND 
———————- 
 
WIND: Hurricane conditions are expected to begin in the hurricane warning area later this morning and spread northward across the Leeward Islands today and tonight. Tropical storm conditions are expected within the tropical storm warning areas today and tonight. 

Hurricane conditions are possible in the hurricane watch areas today and tonight. Tropical storm conditions are possible on Martinique today and 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. 
 
Portions of the Windward Islands: 2 to 4 inches with maximum amounts of 6 inches. 
 
British and US Virgin Islands into eastern Puerto Rico: 1 to 2 inches with maximum amounts of 4 inches. 
 
These rains may produce isolated flash and urban flooding, along with isolated mudslides in areas of higher terrain. 
 
STORM SURGE: Storm surge could raise water levels by as much as 1 to 3 feet above normal tide levels near where the centre of Tammy moves across the Leeward Islands. Near the coast, the surge will be accompanied by large and dangerous waves. 
 
SURF: Swells generated by Tammy will continue to affect portions of the Lesser Antilles during the next few days. These swells are likely to cause life-threatening surf and rip current conditions. 
 

Next comp;ete advisory will be available at 11 am.