"Potential Tropical Cyclone Nine" had maximum sustained winds of 45 mph and was within 180 miles of Puerto Rico late Wednesday, approaching from the southeast and moving west-northwest at 23 mph, AccuWeather said.
Tropical Storm Isaias is brining heavy rain and high winds to Puerto Rico this morning.
The Florida Division of Emergency Management announced Wednesday all state-supported coronavirus testing sites will temporarily close this week ahead of the anticipated arrival of a weather system that's expected to become a tropical storm.
Tropical Storm Isaias got stronger on Thursday morning as it dumped heavy rain on Puerto Rico, where there were multiple flash flood warnings in effect.
That much rain raises the risk of flash flooding and deadly mudslides, forecasters said.
Tropical storm warnings are now in effect in numerous islands in the storm's path, including Puerto Rico, Vieques, Culebra, U.S. Virgin Islands, British Virgin Islands, Anguilla, Dominican Republic entire southern and northern coastlines, 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. After that, the storm could hug the coast of Georgia, South Carolina or North Carolina. There is also a Tropical Storm Watch in parts of the northern Bahamas.
The longer-range forecast for this future tropical storm remains highly uncertain, as environmental conditions with a combination of land interaction and disruption may very well keep this system from further organizing late this week and over the weekend.
There are uncertainties for the track of the system in the next couple of days.
The storm is forecasted to bring rain and wind impacts to Florida later in the week and the weekend.
The names for the 2020 Atlantic hurricane season.