This is just the fourth named storm in the Atlantic since the hurricane season began on June 1. Storms are named once they reach tropical storm status, which occurs when a storm reaches maximum sustained surface winds of at least 39 mph, according to the National Weather Service (NWS).

Forecasters are keeping an eye on two additional systems in the Atlantic with potential for development later this week.

Tropical Storm Dexter has formed, and the NHC is watching 2 other systems. Will any hit PA or NJ? See maps, spaghetti models, storm impacts.