HOUSTON — We're in the middle of the summer, and the Atlantic hurricane season is entering its most active stretch, with conditions quickly ramping up as we approach the climatological peak on Sept. 10. After a relatively quiet start, recent days have seen a notable uptick in tropical activity, signaling the transition into the heart of the season.

At the beginning of August, tropical systems typically form in areas stretching from the Caribbean up along the East Coast of the United States.

Hurricane forecasters were tracking three disturbances in the Atlantic Ocean Sunday afternoon, one of which is expected to briefly become the season's fourth named storm as it moves away from the U.S. UPDATE: Tropical Storm Dexter forms in Atlantic as forecasters track two other disturbances