The severe weather poses significant risks to residents in the warned areas, including Sullivan County, NY, and Bergen, Passaic, and Morris Counties, NJ. The storms are capable of producing tornadoes, quarter-size hail, and torrential rainfall, which could lead to flash flooding. Communities such as Neversink, Willowemoc, Briscoe, Grahamsville, Wayne, and Paterson are in the storm's path. Motorists are advised to avoid driving through flooded roadways, and residents should be prepared for rapidly changing conditions.