Will Tropical Storm Hermine form in the Caribbean?

Forecasters are watching five systems in the Atlantic basin.

Forecasters are watching five systems in the Atlantic basin.

National Hurricane Center

The Atlantic basin remains crowded Thursday morning, with forecasters monitoring five systems:

A disturbance Florida is closely watching in the Caribbean Sea that has a high chance of turning into a tropical depression in the next couple of days.

Two systems are in the eastern Atlantic, one of which could be a tropical depression this weekend.

And there’s Hurricane Fiona and Tropical Storm Gaston, neither of which are a threat to Florida or the rest of the United States.

Here’s a forecast breakdown:

Disturbance in the Caribbean

The tropical wave off the coast of Venezuela that models suggest could blow up into a hurricane in the Caribbean later this week was struggling to form a defined center on Thursday. Radar images showed the beginnings of a swirl, but mostly a disorganized system.

It was battling leftover wind shear from Category 4 Hurricane Fiona, which ripped through Puerto Rico and the Dominican Republic this week, and was so close to Venezuela Thursday afternoon that it was half on land — slowing down development.

At this point, the National Hurricane Center expects those impediments to fade away in the next few days, allowing the wave to develop into a tropical depression or storm somewhere in the western Caribbean.

“The environment is forecast to become more conducive for development, and a tropical depression is likely to form in the next day or so,” the hurricane center said in its advisory at 2 pm

The hurricane center Thursday afternoon raised the system’s formation chances from 70% to 80% through the next 48 hours and a 90% chance within the week.

“That’s as far as we go at this point,” acting director of the hurricane center, Jamie Rhome, said in a Thursday morning broadcast. “There’s been a lot of speculation about what this storm might do if it were to enter the Gulf of Mexico. It’s too soon to speculate out that far in time.”

The latest rounds of computer models continue to show possible paths for the future storm that stretches from the Yucatan Peninsula to Florida’s Panhandle, although they are far less confident than the predictions for what the potential storm could do in the short term.

READ MORE: What those hurricane spaghetti models all over social media actually mean

The GFS American model, for example, takes the system into the west-central Gulf of Mexico next week, which would be good for South Florida, NBC6 Meteorologist Adam Berg said on Twitter. Berg said that the European model, on the other hand, brings the system closer to Florida, which would bring more rain and breezes to the region.

“Until the models agree, our confidence is low when it comes to South Florida Impacts,” Berg tweeted.

In its advisory, the hurricane center notes: “Locally heavy rainfall and gusty winds are likely to affect the Windward Islands, northern Venezuela,” and Aruba, Bonaire and Curacao. “These impacts are likely to spread to northeastern Colombia later this evening. Interests in Jamaica should closely monitor the progress of this system.”

Storms Sept 22.PNG
Forecasters are watching five systems in the Atlantic basin. National Hurricane Center

What about the disturbances in the eastern Atlantic?

The hurricane center is monitoring two disturbances in the eastern Atlantic. One system has emerged from Africa’s west coast into the Atlantic’s warm waters. And another is several hundred miles west-southwest of the Cabo Verde Islands.

Forecasters say the disturbance near the African coast could turn into a tropical depression this weekend as it slowly moves north, between west Africa and the Cabo Verde Islands. The hurricane center says it has a 60% chance of formation in the next two to five days. The other system could see some gradual development as it moves northwest or north over the Atlantic and has a 20% chance of formation in the next 48 hours and a 30% chance of formation through the next five days.

Hurricane Fiona

Hurricane Fiona, a large Category 4 storm, was quickly moving north-northeast over the Atlantic on Thursday evening with maximum sustained winds near 130 mph with higher gusts. Its hurricane-force winds extended up to 70 miles and tropical-storm-force winds extended up to 275 miles, a huge jump from the afternoon.

As of the hurricane center’s 5 pm Thursday advisory, Fiona was about 305 miles west-southwest of Bermuda and about 1,030 miles south-southwest of Halifax, Nova Scotia.

The forecast shows Fiona passing Thursday night just to the west of Bermuda, which is under a hurricane warning. The forecast shows Fiona weakening sometime Thursday night into a Category 3 hurricane with maximum sustained winds of 125 mph.

Forecasters expect the storm will still “be a large and powerful post-tropical cyclone with hurricane-force winds when it moves over Nova Scotia Friday night and Saturday.” Hurricane and tropical storm watches were issued for much of Atlantic Canada on Thursday.

204546_5day_cone_no_line_and_wind.png
Tropical Storm Fiona was approaching Bermuda as a Category 4 hurricane with 130 mph winds Thursday evening. NHc

Forecasters expect Bermuda will begin feeling hurricane conditions late Thursday, with parts of Canada feeling Fiona’s hurricane and tropical storm-force winds by late Friday. The hurricane center says Bermuda will see two to four inches of rain, with storm surge expected along part of its coast starting Thursday night. Fiona’s swells are also continuing to affect the Turks and Caicos Islands, the Bahamas, the southeastern United States coast, and have now reached Bermuda.

“These swells will continue to spread northwestward across the western Atlantic toward the mid-Atlantic and northeast coasts of the United States over the next day or so. The swells will also reach Atlantic Canada on Friday. These swells are likely to cause life-threatening surf and rip current conditions,” the hurricane center said.

READ NEXT: How much damage did Hurricane Fiona do to Puerto Rico? Videos, photos show destruction

Tropical Storm Gaston

Tropical Storm Gaston was approaching the western Azores Thursday evening with maximum sustained winds of 65 mph with higher gusts, according to the hurricane center’s advisory at 5 pm

The forecast showed the fast-moving storm making a turn to the east by Thursday night. Gaston’s center is expected to move near or over portions of the Azores Thursday night through Saturday. Parts of the Azores are under a tropical storm warning.

The hurricane center expects Gaston will weaken in the next few days and will make a “clockwise loop near or over the central and western Azores on Friday and Saturday as the storm moves on the south side of another ridge.” Forecasters expect it will turn into a post-tropical system in the next few days once it “merges with an approaching shortwave trough.”

173704_5day_cone_no_line_and_wind.png
Tropical Storm Gaston was speeding toward the Azores Thursday evening at 21 mph. NHC

What are the next storm names?

Hermine and Ian are the next storm names on the list for the 2022 Atlantic hurricane season.

This story was originally published September 22, 2022 7:19 AM.

There’s never a dull moment in Florida — and Michelle covers it as a Real Time/Breaking News Reporter for the Miami Herald. She graduated with honors from Florida International University, where she served as the editor-in-chief of Student Media PantherNOW. Previously, she worked as a news writer at WSVN Channel 7 and was a 2020-2021 Poynter-Koch Media & Journalism fellow.

Profile Image of Alex Harris

Alex Harris covers climate change for the Miami Herald, including how South Florida communities are adapting to the warming world. She attended the University of Florida.

.

Leave a Comment