Powerful gales reaching speeds of as high as 155km/h (96mph) have caused approximately 90,000 properties experiencing outages and compelled agencies to halt more than 100 flights, according to domestic outlets.
The gales are affecting the whole South Island and southern sections of the northern region, according to the weather forecasting body.
The nation's agencies have released rare high-level wind alerts - the highest alert level - in core zones encompassing Wellington and Canterbury.
Locals have been encouraged to remain inside, avoid travel, and get ready for more utility disruptions.
Broad Impact and Crisis Response
This outage seems to be impacting households mainly in the South Island, while officials state that the electricity supply was being gradually reinstated.
Regional news have indicated that in certain areas structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gusts.
In Wellington, a person was lost his life after being hit by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was swept into moving cars on a street by a powerful blast, in a event that was filmed in a widely shared car camera footage.
Aircraft services to and from the urban area have been cancelled due to the winds, and certain highways and community centers are not operating.
At the same time local leaders have announced a state of emergency, to facilitate emergency management operations.
Strike Action Amid Harsh Conditions
The wild winds on this day coincide with many of educators, medical professionals and government employees take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
Yet the extreme weather has pressured them to alter certain arrangements, with several external protests relocated inside or cancelled.
Similar gusts are affecting the neighboring country, ushering in a heatwave to the nation's interior regions.
Agencies have announced fire bans for fear of bushfires.
