A state of emergency has been declared in New Jersey as a potent nor'easter bears down on the region, poised to unleash significant coastal flooding from Sunday through Monday. The approaching storm is anticipated to generate formidable waves reaching 12 to 15 feet, coupled with tides surging 2 to 4 feet above their typical levels. Furthermore, residents can expect forceful wind gusts peaking at 60 mph and rainfall accumulations ranging from 3 to 5 inches.