Intense gusts attaining velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 homes lacking electricity and led officials to halt more than 100 flights, based on local media.
The winds are affecting the entire South Island and lower areas of the North Island, per the country's meteorological service.
The nation's agencies have issued rare red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
People have been encouraged to remain inside, avoid travel, and get ready for further electricity and network failures.
Widespread Damage and Crisis Measures
The electricity loss appears to be affecting homes predominantly in the South Island, although officials state that energy was being restored progressively.
Domestic outlets have stated that in some places roofs have been ripped off houses, while trees and electricity poles have been knocked down by the gusts.
In Wellington, a person was lost his life after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a individual was blown onto approaching vehicles on a road by a strong gust of wind, in a incident that was captured in a popular vehicle recording.
Aircraft services in and out of the urban area have been halted because of the gusts, and certain highways and community centers are also closed.
Meanwhile Canterbury officials have announced a crisis declaration, to facilitate recovery activities.
Labor Protests Amid Harsh Conditions
The wild winds on today coincide with numerous of school staff, physicians and civil servants take part in what has been termed a "mega strike", calling for higher wages and enhanced employment terms.
But the intense climate has pressured them to modify various scheduled activities, with several external protests moved indoors or cancelled.
Comparable winds are impacting Australia, bringing a period of extreme heat to the nation's interior regions.
Agencies have issued burning restrictions for concern about bushfires.
