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article imagePotential Tropical Storm Isaias headed toward Dominican Republic

By Karen Graham     Jul 29, 2020 in Environment
The National Hurricane Center has placed the new center of the Tropical Disturbance about 100 miles to the west from where it was at the 8 a.m. advisory. This change has shifted the track more west, taking it south of Puerto Rico.
The 11:00 a.m. advisory from the NHC places the tropical disturbance about 240 miles (385 kilometers) southeast of Puerto Rico, moving to the west-northwest at 23 mph (37 kph), with maximum sustained winds of 45 mph (75 kph). The system's minimum central pressure is now 1006 MB (29.71 inches).
Tropical Storm Warnings are in effect for Puerto Rico, Vieques, Culebra, the U.S. Virgin Islands, the British Virgin Islands, Antigua, Barbuda, Montserrat, St. Kitts, Nevis, and Anguilla, Guadeloupe, Martinique, St. Martin, and St. Barthelemy, Saba and St. Eustatius, and St. Maarte.
A Tropical Storm Warning is also in effect for the Dominican Republic, from Cabo Caucedo eastward to Cabo Engano and then westward along the northern coast to the Dominican Republic/Haiti border.
On the forecast track, the system will move near or just south of Puerto Rico later today and tonight, and near or over Hispaniola on Thursday, and near or over eastern Cuba on Friday. However, the high mountains of Hispaniola are known as hurricane shredders, and if a weaker Isaias emerges on the other end of the island, current models show it would be met with high wind shear in the Florida Straits, another factor that slows down storms, according to the Miami Herald.
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This means that some weakening is likely on Thursday due to land interaction. Some restrengthening is possible by this weekend as it goes back over warm waters just north of Cuba.
“It still must be stressed that since the system lacks a well-defined center and remains in its formative stage, uncertainty in the specifics of the track forecast remains high in both the short and longer range,” forecasters wrote.
Hurricane hunters are investigating the system again. If they find a center, this system could be named in the next few hours. The next name on the list is Isaías, and could bring mayor updates on the next full advisory at 5 p.m. if it is shifted.
More about Tropical storm, Isaias, Puerto rico, strengthening today, Heavy rains
 
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