September 18, 2023

Tropical Disturbances Today
















(left to right) 

Disturbance 1. Western Atlantic: A non-tropical area of low pressure is forecast to form near the southeastern coast of the United States late this week.  This system could acquire some subtropical characteristics this weekend if it remains offshore while it moves slowly northward or northwestward. Formation chance through 48 hours...low...near 0 percent and formation chance through 7 days...low...30 percent.

Disturbance 2. Hurricane Nigel is no threat to our area but is forecast to intensify into a major hurricane on Tuesday. Nigel is located about 935 miles ESE of Bermuda moving NW at 12 MPH with maximum sustained winds of 80 MPH. There are no coastal watches or warnings in effect.

Disturbance 3. Eastern Tropical Atlantic: A tropical wave is expected to move off the west coast of Africa by Wednesday.  Environmental conditions are forecast to be conducive for gradual development of the wave thereafter, and a tropical depression is likely to form late this week or this weekend while the system moves westward across the eastern and central tropical Atlantic. Formation chance through 48 hours...low...near 0 percent and formation chance through 7 days...high...70 percent.

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