Intense gusts attaining velocities of as high as 155km/h (96mph) have left around 90,000 homes lacking electricity and forced officials to halt more than 100 aircraft departures, according to domestic outlets.
The winds are affecting the complete South Island and southern sections of the northern region, according to the weather forecasting body.
New Zealand authorities have released uncommon high-level wind alerts - the top caution category - in core zones encompassing these major districts.
People have been encouraged to avoid going outside, avoid travel, and make arrangements for additional utility disruptions.
Widespread Impact and Emergency Measures
The power cut appears to be affecting households predominantly in the South Island, while agencies say that energy was being restored progressively.
Regional news have stated that in some places structures have suffered roof damage, and trees and electricity poles have been knocked down by the winds.
In Wellington, a individual was killed after being struck by a falling limb at a well-known hiking path on Tuesday.
Also in the capital, a woman was blown onto moving cars on a thoroughfare by a strong gust of wind, in a event that was recorded in a viral dashcam video.
Aircraft services in and out of the urban area have been suspended due to the gusts, and some roads and libraries are shut down.
Simultaneously Canterbury officials have declared a state of emergency, to support emergency management operations.
Strike Action Alongside Extreme Conditions
These intense gusts on today coincide with tens of thousands of teachers, doctors and other public workers take part in what has been called a "mega strike", calling for improved salaries and workplace environments.
However the intense climate has compelled them to alter various scheduled activities, with various open-air gatherings shifted to interior venues or cancelled.
Comparable winds are impacting the nearby nation, ushering in a period of extreme heat to the nation's interior regions.
Agencies have declared fire bans for apprehension regarding wildfires.