Forecasters with the National Hurricane Center (NHC) are tracking four tropical disturbances in the Atlantic basin, including the newly designated Cyclone 99L off the US East Coast and Cyclone 90L off the Gulf Coast.
“Investment” is a naming convention used only by the NHC in Miami, the Central Pacific Hurricane Center (CPHC) in Honolulu, Hawaii, and the US Joint Typhoon Warning Center (JTWC) in Pearl Harbor, Hawaii, to identify areas. Checking for possible development into a tropical depression or tropical storm in the next seven days.
Invest 99L is located a few hundred miles east of North Carolina and is producing showers and thunderstorms northeast and east of the system’s center, the NHC said.
Invest 99L may acquire some tropical characteristics over the next few days as it moves north-northeast.
On Thursday, the NHC said showers and thunderstorms mixed with INVEST 99L are becoming better organized and producing gale-force winds.
Invest 99L is expected to stay off the northeast coast, and once the system moves over cooler water by late Saturday, no further tropical development is expected.
NHC Invest is giving 99L less opportunity to grow.
Invest 90L near the Texas Coast Blast the Gulf Coast with wet weather
A disturbance in the Gulf of Mexico off the coasts of Texas and Louisiana, now identified by the NHC as Invest 90L, is being monitored for possible tropical development over the next few days.
This area of disturbed weather has been blasting the Gulf Coast with heavy rains for the past several days, but the NHC dropped development restrictions earlier this week.
However, in its update on Thursday morning, the NHC once again said it would monitor the system and later gave it an investment designation.
Upper-level winds are expected to become less favorable for development through Friday and Saturday as the front approaches the area, the NHC said.
“Heavy rain is expected over parts of the northern Gulf Coast over the next day or so, although the chance of development is low,” the NHC said.
NHC is giving the system less chance to develop.
A Caribbean Disturbance may develop once it enters the Gulf of Mexico
A tropical disturbance is moving rapidly westward at about 20 mph over the western Caribbean and continues to produce a widespread area of scattered showers and thunderstorms.
The NHC says some development of the system is possible in the next few days as the system moves over Mexico’s Yucatan Peninsula and then into the southwestern Gulf of Mexico.
The system is given little chance to develop over the next week.
A tropical disturbance may develop slowly in the eastern Atlantic
A tropical disturbance over the eastern tropical Atlantic is producing a widespread area of scattered rain and storms.
Slower development is possible over the next few days as the system moves northwest or north, the NHC said.
The disruption is unlikely to increase in the coming week.
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