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National Hurricane Center tracking 3 systems in Atlantic; 1 approaching Florida, Bahamas

Florida Today logo Florida Today 9/9/2019 Cheryl McCloud, Treasure Coast Newspapers

The National Hurricane Center is keeping an eye on three systems in the Atlantic.

A disturbance north of Puerto Rico is moving into an area conducive for development and is expected to approach the Bahamas and Florida late this week.

Another system farther east is approaching the Caribbean. While development is possible over the next couple of days, the Hurricane Center said it's forecast to encounter upper-level winds after that time.

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Tropical Storm Gabrielle continues moving away from the U.S. in the North Atlantic. Little change in strength is expected today and Gabrielle was forecast to become an extratropical low by Tuesday night.

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Disturbance approaching Florida could develop later this week

a close up of a map: Tropical disturbance 8 a.m. Sept. 9, 2019 © GRAPHIC CONTRIBUTED BY NATIONAL HURRICANE CENTER Tropical disturbance 8 a.m. Sept. 9, 2019

Disorganized cloudiness and showers located a few hundred miles north and northeast of the Greater Antilles —  which include the island nations of Cuba, Hispaniola, Puerto Rico, Jamaica, and the Cayman Islands — are associated with a surface trough interacting with an upper-level low, according to the 8 a.m. advisory from the National Hurricane Center

More: Hurricane Dorian leaves Florida; Fernand, Gabrielle, Humberto and more on tap | WeatherTiger

Little to no development of this system is expected during the next day or two while the system moves west-northwest, north of the Greater Antilles.

Environmental conditions could become a little more conducive for development when the disturbance moves near the Bahamas and Florida late this week.

  • Formation chance through 48 hours: near 0 percent.
  • Formation chance through 5 days: low, 20 percent.
a close up of a map: Tropical disturbance 8 a.m. Sept. 9,2019. © GRAPHIC CONTRIBUTED BY ACCUWEATHER Tropical disturbance 8 a.m. Sept. 9,2019.

"A disturbance will pass to the north of the eastern Caribbean and into the Bahamas early this week," said AccuWeather Senior Meteorologist Adam Douty. "It will have to be monitored as it tracks generally to the west to west-northwest."

Regardless of whether or not this disturbance organizes into a tropical system, Douty expects it to enhance rainfall across Florida late this week. The northern Bahamas, which suffered a devastating blow from Dorian, may also experience an uptick in wet weather.

"This disturbance is expected to move into the northern Gulf by next weekend," Douty said. "There is pretty strong wind shear from the Bahamas into the northern Gulf, so we are only allowing for a low chance for development with this at this time."

Tropical wave moving west across Atlantic

a close up of a map: Tropical wave 8 a.m. Sept. 9, 2019 © GRAPHIC CONTRIBUTED BY NATIONAL HURRICANE CENTER Tropical wave 8 a.m. Sept. 9, 2019

A weak area of low pressure, associated with a tropical wave, continues to produce disorganized showers and thunderstorms about midway between the Cabo Verde Islands and the Windward Islands.

Some slow development of this system is possible during the next two or three days before upper-level winds become unfavorable for tropical cyclone formation.

More: Let's make sense of hurricane 'model spaghetti'; WeatherTiger Lesson 1 says not all are equal

This system is expected to move generally west across the tropical Atlantic Ocean for the next several days.

  • Formation chance through 48 hours: low, 20 percent.
  • Formation chance through 5 days: low, 30 percent.

Tropical Storm Gabrielle

a close up of a map: Tropical Storm Gabrielle 5 a.m. Sept. 9, 2019 © GRAPHIC CONTRIBUTED BY NATIONAL HURRICANE CENTER Tropical Storm Gabrielle 5 a.m. Sept. 9, 2019

Gabrielle's maximum sustained winds of dropped to 50 mph, according to the 11 a.m. advisory from the National Hurricane Center.

The tropical storm is moving to the northeast at 18 mph.

More: Tropical Storm Gabrielle path, predicted track

Little change in strength is expected today, but a weakening trend is likely to begin Tuesday.  Gabrielle is expected to become an extratropical low by Tuesday night.

Post-Tropical Storm Dorian

a close up of a map: Post-Tropical Cyclone Dorian 11 a.m. Sept. 8, 2019 © GRAPHIC CONTRIBUTED BY NATIONAL HURRICANE CENTER Post-Tropical Cyclone Dorian 11 a.m. Sept. 8, 2019

Dorian is moving over the cold waters of the Labrador Sea and became fully extratropical Sunday.

At 11 p.m. Sunday, the National Hurricane Center issued its last advisory on the storm that impacted so many on its path around the Atlantic.

Maximum sustained winds were still a hefty 60 mph as it headed east-northeast at 24 mph.

a screenshot of a cell phone: Hurricane Dorian by the numbers © GRAPHIC CONTRIBUTED BY ACCUWEATHER Hurricane Dorian by the numbers

“Dorian's longevity as a hurricane is not particularly noteworthy. Its longevity is slightly more impressive as a named storm,” Colorado State University meteorologist Phil Klotzbach told AccuWeather in an email. Klotzbach is a research scientist specializing in Atlantic basin seasonal hurricane forecasts.

This two-week lifespan puts Dorian in the top 10% of all named storms in the satellite era, according to Klotzbach.

Saturday marked the 15th day that Dorian was an active tropical cyclone, dating back to Aug. 24, 2019, when it first became a tropical depression.

However, this comes nowhere close to the all-time record for the longest-lived storm in the Atlantic. That record is held by the San Ciriaco Hurricane of 1899 which was classified as a hurricane for four weeks.

This article originally appeared on Treasure Coast Newspapers: National Hurricane Center tracking 3 systems in Atlantic; 1 approaching Florida, Bahamas

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