A tropical wave, in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which moves from east to west across the
Tropical Storm Dorian as a tropical wave just north of Puerto Rico on July 29, 2013.
Tropical wave formation
Hurricane Sandy as a tropical wave below Hispaniola on October 20, 2012
Hurricane Harvey as a tropical wave in the Gulf of Honduras on August 21, 2017
The 2013 Atlantic hurricane season was a well below average Atlantic hurricane season in terms of the number of hurricanes and ACE. It was the first since 1994 with no major hurricanes, Category 3 or