Tropical Storm Humberto has formed in the Atlantic, south of the Cape Verde Islands and is forecast to eventually become a hurricane by Wednesday.

If it happens after 8 a.m. on September 11th, it would become the latest first hurricane on record in the Atlantic Basin.

The current record is held by Hurricane Gustav which formed September 11, 2002. Four hurricanes formed after Gustav that year.

Before that, it was Hurricane Diana which formed on September 10, 1984.


The water along the Equatorial region is very warm and strengthening is likely. Wind sheer and dry air is minimal at this time, which if present, would tear the system apart.

Even if Humberto becomes a hurricane later this week, the forecast is for it to move northwest, into the northern Atlantic, where water temperatures are cooler, and the upper-level winds are stronger, which puts the storm in a tough spot for further development. 

Based on the latest track and models, Humberto will likely stay at sea and not become a player in the U.S.

LATEST ON HUMBERTO | Forecast Track - Satellite - Interactive Track