The National Hurricane Center confirmed on Wednesday that Tropical Depression Seven has formed in the Central Atlantic. The system, which is expected to become Tropical Storm Gabrielle in the coming days, met the criteria to be designated a tropical depression with winds greater than 34 mph on Wednesday. As of Wednesday, the tropical depression does not pose a threat to the United States. While the climatological peak of the Atlantic hurricane season has passed, roughly 60% of tropical activity typically occurs after Sept. 10, on average, according to the National Hurricane Center. Historically speaking, about two-thirds of all Atlantic hurricane season activity occurs between Aug. 20 and Oct. 10.