The southern zone, where the surge is predicted to be between 5 and 10 feet, includes the area south of Sunrise Highway from the Queens line to Rockville Centre and south of Merrick Road from Rockville Centre to the Nassau-Suffolk border.

All of Long Beach, Lido Beach, Atlantic Beach and Point Lookout are under the mandatory evacuation order. Route 878, the Nassau Expressway, began operating only northbound at 4 p.m.