Photo: RNZ
Nelson, Westport, Picton, Murchison, Hanmer Springs and Golden Bay are currently isolated due to the weather.
Buller and Marlborough have declared local states of emergency, as high river levels, flooding, fallen trees and slips close state highways across the top of the South Island.
Buller Emergency Management is evacuating several more streets in Westport as the Buller River rises. Zone 10, under an evacuation order, includes Brougham Street and Eastons Road.
Eight hundred Westport residents evacuated last night have been told they must remain out of their homes for a second night.
Marlborough Emergency Management has evacuated four areas - all of Spring Creek township, Tuamarina township, part of the Lower Wairau and Lower Terrace in Renwick