Tropical Storm Isaac Advisory Number  18

NWS National Hurricane Center Miami FL       AL102024

900 AM GMT Mon Sep 30 2024

 

...ISAAC EXPECTED TO BECOME POST-TROPICAL LATER TODAY...

 

SUMMARY OF 900 AM GMT...0900 UTC...INFORMATION

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LOCATION...44.7N 31.3W

ABOUT 515 MI...825 KM NNW OF THE AZORES

MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H

PRESENT MOVEMENT...ENE OR 60 DEGREES AT 15 MPH...24 KM/H

MINIMUM CENTRAL PRESSURE...975 MB...28.80 INCHES

 

WATCHES AND WARNINGS

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There are no coastal watches or warnings in effect.

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Tropical Depression Joyce Advisory Number  12

NWS National Hurricane Center Miami FL       AL112024

500 AM AST Mon Sep 30 2024

 

...JOYCE LIKELY TO BECOME A REMNANT LOW LATER TODAY...

 

SUMMARY OF 500 AM AST...0900 UTC...INFORMATION

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LOCATION...22.1N 49.7W

ABOUT 910 MI...1465 KM ENE OF THE NORTHERN LEEWARD ISLANDS

MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H

PRESENT MOVEMENT...W OR 260 DEGREES AT 2 MPH...4 KM/H

MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES

 

WATCHES AND WARNINGS

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There are no coastal watches or warnings in effect.

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Tropical Depression Twelve Advisory Number   3

NWS National Hurricane Center Miami FL       AL122024

500 AM AST Mon Sep 30 2024

 

...DEPRESSION NEAR TROPICAL STORM STRENGTH......EXPECTED TO BECOME A LARGE AND POWERFUL HURRICANE LATER THIS WEEK...SUMMARY OF 500 AM AST...0900 UTC...INFORMATION

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LOCATION...14.0N 34.1W

ABOUT 690 MI...1105 KM W OF THE CABO VERDE ISLANDS

MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H

PRESENT MOVEMENT...W OR 275 DEGREES AT 8 MPH...13 KM/H

MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES

 

WATCHES AND WARNINGS

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There are no coastal watches or warnings in effect.

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1. Western Caribbean Sea and Gulf of Mexico:  A large and disorganized area of low pressure located over the western and southwestern Caribbean Sea is producing some shower and thunderstorm activity.  Environmental conditions could become conducive for gradual development, and a tropical depression could form in a few days while the system is over the southern Gulf of Mexico or northwestern Caribbean Sea.  While interests in the northwestern Caribbean Sea and along the U.S. Gulf Coast should continue to monitor the progress of this system, the timetable for potential development has shifted later toward late week or this weekend.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

2. Eastern Tropical Atlantic:  Showers and thunderstorms have increased in association with a tropical wave located a few hundred miles south of the Cabo Verde Islands.  Upper-level winds are forecast to become more conducive for gradual development, and a tropical depression is likely to form in a few days while it moves slowly westward over the eastern tropical Atlantic.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...high...80 percent.