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VI Freep 2017 Storm Watch Team Projects Invest 99L To Miss The Territory To The North

WHAT TO EXPECT: The area highlighted is where a tropical depression or storm may develop during the next five days.

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CHRISTIANSTED — The Virgin Islands Free Press is projecting Invest 99L to pass well north of the territory.

The disorganized, asymmetrical storm system was about 812 miles away from St. Croix at 10:30 a.m. today.

It is a fledgling tropical disturbance that we’ve been tracking in the Atlantic since last week, but it still bears watching for possible development into this season’s next tropical depression or storm — just in case.

The system is producing shower and thunderstorm activity several hundred miles east of the Lesser Antilles. The term “invest” is used by the National Hurricane Center (NHC) to identify features that are being monitored for possible development into a tropical depression or tropical storm.

Invest 99L is in an environment hostile for development at the moment. The region of the Atlantic where it’s located features strong upper-level winds and dry air, two nemeses of potential tropical cyclones.

By this weekend, however, conditions may become more hospitable for the gradual development of Invest 99L as it reaches an area north of Lesser Antilles and east of the Bahamas. The NHC says that this system has a medium chance of development during the next five days, but those odds could decrease or increase based on the latest forecast guidance and satellite trends.

Of particular interest to East Coast residents is the steering pattern that will be in place at the time Invest 99L enters the potential development area.

No matter whether this system remains weak or develops significantly, it will begin to turn more to the north this weekend. That is because it will be sandwiched between the western periphery of high pressure in the central Atlantic and an incoming southward dip in the jet stream across the eastern U.S.

Invest 99L will take the alleyway in between those large-scale weather systems. At the moment, it appears this alleyway will set up far enough east that the U.S. mainland would avoid any direct impacts. However, we still need to monitor for any potential future shifts westward in the forecast guidance that would bring it closer to the states.

But before we get to that point in the forecast, a tropical depression or tropical storm needs to develop first, and that’s an uncertain factor at this point. The good news is we have plenty of time to monitor this system’s progress in the days ahead, so check back for updates.


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The Author

John McCarthy

John McCarthy

John McCarthy is primarily known for his investigative reporting on the U.S. Virgin Islands. A series of reports beginning in the 1990's revealed that there was everything from coliform bacteria to Cryptosporidium in locally-bottled St. Croix drinking water, according to a then-unpublished University of the Virgin Islands sampling. Another report, following Hurricane Hugo in 1989, cited a Federal Emergency Management Agency (FEMA) confidential overview that said that over 40 percent of the U.S. Virgin Islands public lives below the poverty line. The Virgin Islands Free Press is the only Caribbean news source to regularly incorporate the findings of U.S. Freedom of Information Act requests. John's articles have appeared in the BVI Beacon, St. Croix Avis, San Juan Star and Virgin Islands Daily News. He is the former news director of WSVI-TV Channel 8 on St. Croix.

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