Forecasters from the National Hurricane Center (NHC) recently detected a tropical wave forming in the Atlantic Ocean that possesses the potential to develop into Tropical Storm Ernesto. What is a tropical wave? A tropical wave is an elongated area of low pressure that can initiate thunderstorms and lead to the formation of tropical cyclones. Key TakeawayWhile the immediate future of the developing tropical wave remains uncertain, the potential for transformation into Tropical Storm Ernesto is genuine. Those living in vulnerable areas should remain alert, heed forecasts, and prepare for possible impacts from this developing weather system.