Powerful gusts hitting velocities of up to 155km/h (96mph) have caused nearly 90,000 homes lacking electricity and forced agencies to call off more than 100 aircraft departures, based on domestic outlets.
The gales are influencing the entire South Island and southern parts of the North Island, according to the national weather agency.
New Zealand authorities have released rare red wind warnings - the top caution category - in core zones such as Wellington and Canterbury.
Locals have been urged to remain inside, avoid travel, and get ready for further electricity and network failures.
Widespread Destruction and Emergency Response
The electricity loss seems to be impacting households mainly in the South Island, though officials state that the electricity supply was being restored progressively.
Local media have indicated that in some places roofs have been ripped off houses, whereas trees and electricity poles have been knocked down by the winds.
Within the capital, a person was killed after being impacted by a falling limb at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a road by a strong gust of wind, in a moment that was filmed in a widely shared car camera footage.
Flights to and from the urban area have been halted due to the gusts, while certain highways and community centers are shut down.
Simultaneously Canterbury officials have announced a crisis declaration, to assist recovery activities.
Work Stoppages Amid Severe Conditions
The wild winds on this day come as many of educators, medical professionals and government employees are engaged in what has been called a "mega strike", calling for higher wages and enhanced employment terms.
However the intense climate has pressured them to alter some of their plans, with several external protests relocated inside or called off.
Comparable winds are impacting the nearby nation, causing a heatwave to the nation's interior regions.
Authorities have declared burning restrictions for apprehension regarding bushfires.