September 10th marks the climatological peak of the Atlantic hurricane season, and so far the first half has been unusually quiet with no U.S. landfalls. When compared to many recent years, this is rare. While a slow start might feel like good news, history reminds us that the second half of the season often delivers bulk of the activity.
Sea surface temperatures across the Atlantic and Gulf remain unseasonably warm, providing plenty of fuel for development. At the same time, wind shear and dry air have been factors holding storms back, but if those conditions relax, storms could form quickly.
For now, there are no immediate threats are on the horizon, but mid to late September is often the busiest stretch. More than half of an average season’s storms form after this point, so it’s impor