Tropical Storm Isaias forms in the Atlantic Ocean

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Men fish at the Santo Domingo promenade, in Dominican Republic on July 29, 2020. – Dominican Republic’s Emergency Operation Center (COE) increased the alert level from yellow to red for four provinces and Santo Domingo, ahead of the possible passage through the country of tropical storm Isaias. (Photo by ERIKA SANTELICES/afp/AFP via Getty Images)

Tropical Storm Isaias formed in the Atlantic Ocean on Wednesday evening prompting forecasters to issue a tropical storm warning for several islands in the Caribbean.

The U.S. National Hurricane Center said Isaias was centered about 155 miles (249 kilometers) south of Ponce, Puerto Rico, and about 265 miles (426 kilometers) southeast of Santo Domingo, Dominican Republic. It had maximum sustained winds of 50 mph (80 kph) and was moving west northwest at 20 mph (32 kph).

The government of the Bahamas has upgraded the tropical storm watch for the central Bahamas to a tropical storm warning and has issued a tropical storm watch for the northwestern Bahamas.

Tropical storm conditions continued across portions of the Leeward Islands, the U.S. and British Virgin Islands and Puerto Rico through Wednesday night. These conditions are forecast to reach portions of the Dominican Republic and Haiti within the warning area by early Thursday, and the southeastern Bahamas and Turks and Caicos by Thursday afternoon. Tropical storm conditions are expected in the Central Bahamas beginning Friday morning and are possible in the northwestern Bahamas beginning late Friday.

Isaias is expected to produce 3 to 6 inches (7 to 17 centimeters) of rain across the British and U.S. Virgin Islands and Turks and Caicos and also across Puerto Rico, the Dominican Republic, northern Haiti, and eastern Cuba with isolated maximum totals of 8 inches (20 centimeters).

The southeastern Bahamas could see 4 to 8 inches (10 to 20 centimeters) of rain.

These rainfall amounts may lead to life-threatening flash flooding and mudslides, as well as potential riverine flooding beginning Wednesday night.

The storm is also likely to cause swells that will likely cause cause life-threatening surf and rip current conditions affecting portions of the Leeward Islands, the Virgin Islands, and Puerto Rico through Thursday. These swells are forecast to reach the north coast of the Dominican Republic, the Turks and Caicos Islands and the southeastern Bahamas on Thursday.

Tropical Storm Warnings were issued for Puerto Rico, Vieques, Culebra, the U.S. Virgin Islands, the British Virgin Islands, St. Martin, St. Barthelemy, Saba, St. Eustatius, St. Martin, the entire southern and northern coastlines of the Dominican Republic, the north coast of Haiti from Le Mole St Nicholas eastward to the northern border with the Dominican Republic, Turks and Caicos Islands, southeastern Bahamas including the Acklins, Crooked Island, Long Cay, the Inaguas, Mayaguana, and the Ragged Islands and the central Bahamas, including Cat Island, the Exumas, Long Island, Rum Cay, and San Salvador.

A Tropical Storm Watch is in effect for northwestern Bahamas including Andros Island, New Providence, Eleuthera, Abacos Islands, Berry Islands, Grand Bahamas Island, and Bimini.

Interests in Cuba and the Florida peninsula should monitor the progress of this system, the weather service said.

Isaias broke the record as the earliest ninth Atlantic named storm, according to Colorado State University hurricane researcher Phil Klotzbach. The previous record was Irene on August 7, 2005, Klotzbach tweeted.

So far this year, Cristobal, Danielle, Edouard, Fay, Gert and Hanna also set records for being the earliest named Atlantic storm for their alphabetic order.

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