Overview

• The National Hurricane Center and most forecasters expect Imelda to veer sharply east-northeast, reducing the likelihood of significant impacts along the U.S. coast.
• The two hurricanes are close enough to exhibit the Fujiwhara Effect, circling around a common low-pressure center in the North Atlantic.
• According to the National Weather Service, such interactions can lead to orbiting, absorption, merger, or a deflected track, which heightens forecast uncertainty.
• Both systems are traversing warmer-than-average sea surface temperatures, a variable forecasters note could influence their evolution.
• WESH Chief Meteorologist Tony Mainolfi observed signs of mutual shear developing between Imelda and Humberto during the interaction.