Severe gusts reaching speeds of as high as 155km/h (96mph) have left nearly 90,000 homes without power and forced agencies to halt more than 100 flights, according to regional news sources.
These gusts are affecting the entire South Island and southern parts of the North Island, per the national weather agency.
The nation's agencies have issued uncommon red wind warnings - the top caution category - in central regions encompassing Wellington and Canterbury.
Locals have been encouraged to remain inside, refrain from journeys, and get ready for more utility disruptions.
Widespread Destruction and Emergency Response
The power cut appears to be affecting homes mostly in the southern region, although officials state that power was being gradually reinstated.
Local media have indicated that in certain areas roofs have been ripped off houses, whereas trees and electricity poles have been brought down by the gales.
Across Wellington, a individual was fatally injured after being hit by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a female was swept into moving cars on a street by a intensive burst, in a moment that was recorded in a viral dashcam video.
Air travel in and out of the urban area have been cancelled because of the weather, and some roads and libraries are shut down.
Meanwhile authorities in Canterbury have announced a crisis declaration, to facilitate recovery activities.
Labor Protests Alongside Extreme Weather
These intense gusts on this day come as many of school staff, physicians and civil servants take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
However the severe conditions has compelled them to alter certain arrangements, with several external protests shifted to interior venues or abandoned.
Like conditions are impacting the nearby nation, ushering in a high-temperature event to the remote areas.
Authorities have announced burning restrictions for apprehension regarding forest fires.