Potential for tropical development in eastern Atlantic

The Weather Authority

The tropics are showing no signs of slowing down as we end off September. Sam still remains a major category 4 hurricane as of 8 am Wednesday morning. It is continuing to move towards the northwest at 9 mph and has maximum sustained winds of 130 mph. Luckily, this system will remain a ‘fish storm’ and only impact the Atlantic Ocean and then potentially Bermuda by late week.

On top of monitoring Hurricane Sam, the National Weather Service is keeping its eyes on two areas in the Atlantic. The area with the highest potential to becoming the next named storm is just off the west coast of Africa.

Here is a look at the latest Tropical Outlook from the National Hurricane Center:

The National Hurricane Center is issuing advisories on Hurricane Sam, located several hundred miles east of the northern Leeward Islands

  1. Satellite images indicate that showers and thunderstorms continue to become better organzied in association with an area of low pressure located several hundred miles south of the Cabo Verde Islands. If the current trends continue, advisories will likely be initiated on a tropical depression or tropical storm later today. This system is expected to move west-northwestward at 10-15 mph over the eastern Atlantic during the next several days. Additional information on this system, including gale warnings, can be found in High Seas Forecasts issued by Meteo France.
    • Formation chance through 48 hours: high (90%)
    • Formation chance through 5 days: high (90%)
  2. Showers and thunderstorms remain disorganized in association with a trough of low pressure located several hundred miles southwest of the Cabo Verde Islands. Development of this system appears loess liekly due to the interaction with the larger low pressure area located to its east. The system is forecast to drift west-northwestward over the tropical central Atlantic during the next few days.
    • Formation chance through 48 hours: low (30%)
    • Formation chance through 5 days: low (30%)
  3. An area of low pressure associated with the remnants of Peter located several hundred miles south of the Coast of Newfoundland is producing disorganized showers and thunderstorms. This system is moving northeastward into a region of very strong upper-level winds, and significant development is not anticipated. Additional information on this system can be found in High Seas Forecasts.
    • Formation chance thorugh 48 hours: low (10%)
    • Formation chance through 5 days: low (10%)

Forecaster Cangialosi

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