Tropical Storm Isaias is heading toward the US, forcing Florida to close state-run testing sites

National and World News

(CNN) — Florida was closing state-supported Covid-19 testing sites on Thursday in anticipation of Tropical Storm Isaias, which is now forecast to become a hurricane sometime Friday.

Drive-thru and walk-up testing sites were expected to close beginning at 5 p.m., the Florida Division of Emergency Management (FDEM) said in a statement Wednesday, “to keep individuals operating and attending the sites safe.”

The testing sites will remain closed until it’s safe to reopen, though the FDEM anticipates all sites being opened by 8 a.m. August 5 at the latest.

Track the storm here

Miami-Dade County Mayor Carlos Giménez told CNN on Thursday he would be concerned about keeping evacuees socially distanced if a major hurricane hit the state amid the ongoing pandemic.

“Look, if we have a major hurricane here, then we’re going to have to evacuate a number of people and then we’re going to have to … try to keep them separated as much as possible,” he said. “That’s a concern.”

“When you’re not testing is also a concern,” he added. “But the greater danger, the immediate danger has to be taken care of first, and that’s getting our people out of harm’s way.”

Isaias — the ninth named storm of 2020 — is forecast to strengthen over the next 24 to 36 hours and become a hurricane sometime Friday or Friday night, the National Hurricane Center (NHC) said Thursday afternoon.

At that time, the stormed had maximum sustained winds of 60 mph, the NHC said, and was over the Dominican Republic and headed northwest at 20 mph.

The storm was forecast to move near the southeastern Bahamas on Thursday night, before moving near the central Bahamas, the NHC said. Isaias is forecast to move near South Florida on Saturday.

There is uncertainty where and how strong the storm will be when it nears Florida

Where Isaias will hit and how intense it will be was still uncertain Thursday afternoon. Some forecast models show a weak storm hitting the southern coast of Florida, while others show a much stronger storm lashing the east side of the state and moving toward the Carolinas.

Isaias’ official track does not bring the storm over Florida, but within 75 miles on Saturday and Sunday as it moves northward over the Bahamas. This would bring tropical storm conditions to the eastern portion of the Florida peninsula.

The NHC’s forecast for Friday does show the hurricane directly over Grand Bahama Island, which was devastated by Hurricane Dorian less than a year ago.

How the storm interacts over the Hispaniola could impact the intensity of the storm. The NHC said Thursday morning that the storm would likely weaken as it passed over Hispaniola, but it could gradually strengthen as it moves away from the Greater Antilles.

“The eventual track will determine Isaias’s strength and potential future development,” CNN meteorologist Chad Myers said. “A track mainly over water will let the storm get stronger. A path more over land and the mountains of Hispaniola and Cuba will help to tear it apart.”

However, once it gets over warmer waters, the storm could strengthen quickly like what was seen with Hurricane Hanna last weekend. That’s something many models struggled to pick up on.

“We should have a better idea of how strong Isaias will become near the US after reconnaissance aircraft sample the storm and after it passes Hispaniola later today,” the NHC said Thursday afternoon.

Get updates on the storm and check your local forecast

Tropical storm warnings issued

Rainfall will be the main concern over the next few days. Over 3 to 6 inches could fall across the Virgin Islands, Puerto Rico, Dominican Republic, Turks and Caicos, eastern Cuba and northern Haiti.

The southeastern Bahamas could see 4 to 8 inches. This could lead to flash flooding, mudslides and potential riverine flooding. Thursday afternoon, a tropical storm warning was issued for the northwest Bahamas.

Tropical storm warnings were in effect for the Dominic Republic’s southern and northern coastlines, the north coast of Haiti from Le Mole St Nicolas to the border with the Dominican Republic, Turks and Caicos Islands and parts of the southeastern and central Bahamas.

Additionally, a tropical storm watch was issued for Florida’s east coast from Ocean Reef to Sebastian Inlet, the NHC said.

Earlier tropical storm warnings for Puerto Rico and the US Virgin Islands were discontinued.

Why it was originally called Potential Tropical Cyclone Nine

Now that it has been given the name Isaias — pronounced (ees-ah-EE-as) — it is the earliest storm to begin with an “I” on record. The previous record was set on August 7, 2005, part of the busiest season to date.

This continues the record-breaking pace of the 2020 Atlantic hurricane season. Hurricane Hanna smashed the record for the earliest storm with an “H” name by 11 days.

There were tropical storm warnings issued before the storm even formed. The reason it was called “Potential Tropical Cyclone Nine” is because the storm did not have a round center of circulation, says Myers.

Instead, it was very elongated. “When a circular center finally formed, that is when they began to call it a tropical storm.”

By calling it a potential tropical cyclone, it allowed countries to issue watches and warnings.

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