That system, now designated as Tropical Depression Nine, is forming near Hurricane Humberto and is expected to develop into Tropical Storm Imelda in the coming days. If Imelda makes landfall in the U.S. it would be the first storm to hit the contiguous U.S. during the typical hurricane season. Currently, tropical storm warnings and watches are in effect across much of the Bahamas, where Tropical Depression Nine is passing through this weekend. Meanwhile, Hurricane Humberto is expected to continue intensifying over the coming days, adding another layer of concern for the region. The Atlantic hurricane season started slowly this year, but forecasters at the National Oceanic and Atmospheric Administration predict an above-average season overall.