Intense winds reaching velocities of as high as 155km/h (96mph) have caused around 90,000 homes experiencing outages and forced officials to call off over 100 flights, based on local media.
These gusts are affecting the whole South Island and southern sections of the northern region, as stated by the national weather agency.
The nation's agencies have announced uncommon red wind warnings - the most severe warning - in central regions such as these major districts.
People have been encouraged to avoid going outside, avoid travel, and get ready for more utility disruptions.
Extensive Destruction and Emergency Response
This outage appears to be affecting homes mostly in the southern region, while authorities report that energy was being gradually reinstated.
Regional news have indicated that in some places structures have suffered roof damage, whereas trees and electricity poles have been toppled by the gales.
Across Wellington, a man was fatally injured after being struck by a wooden fragment at a frequent walking route on earlier this week.
Also in the capital, a woman was pushed toward moving cars on a road by a strong gust of wind, in a incident that was recorded in a viral dashcam video.
Flights entering and leaving the metropolis have been suspended due to the gusts, while certain highways and community centers are not operating.
Simultaneously Canterbury officials have issued a crisis declaration, to support disaster response efforts.
Work Stoppages Amid Harsh Weather
The powerful gales on Thursday coincide with tens of thousands of educators, medical professionals and government employees take part in what has been called a "major walkout", requesting better pay and working conditions.
However the extreme weather has forced them to change various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are affecting the neighboring country, ushering in a period of extreme heat to the nation's interior regions.
Officials have announced burning restrictions for apprehension regarding wildfires.
