Severe gusts hitting speeds of approximately 155km/h (96mph) have left approximately 90,000 homes lacking electricity and compelled agencies to halt over 100 flights, according to domestic outlets.
These gusts are influencing the complete South Island and southern parts of the North Island, according to the country's meteorological service.
The nation's agencies have announced rare severe gust advisories - the top caution category - in core zones encompassing Wellington and Canterbury.
People have been advised to stay indoors, refrain from journeys, and make arrangements for further electricity and network failures.
Extensive Impact and Crisis Response
The electricity loss is primarily influencing households predominantly in the southern region, though authorities state that energy was being gradually reinstated.
Regional news have indicated that in certain areas structures have suffered roof damage, while trees and electricity poles have been brought down by the gusts.
Across Wellington, a man was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was blown onto approaching vehicles on a street by a strong gust of wind, in a event that was filmed in a popular vehicle recording.
Aircraft services in and out of the urban area have been suspended because of the winds, and certain highways and community centers are shut down.
Simultaneously Canterbury officials have announced a crisis declaration, to assist disaster response efforts.
Labor Protests During Severe Conditions
The wild winds on today occur while many of teachers, doctors and other public workers are engaged in what has been termed a "major walkout", requesting higher wages and enhanced employment terms.
But the severe conditions has pressured them to change some of their plans, with some outdoor rallies moved indoors or cancelled.
Similar gusts are also sweeping the nearby nation, causing a heatwave to the nation's interior regions.
Authorities have announced flame prohibitions for fear of wildfires.