Intense winds attaining velocities of up to 155km/h (96mph) have left nearly 90,000 homes without power and forced agencies to cancel more than 100 flights, according to domestic outlets.
These gusts are affecting the entire South Island and southern sections of the northern region, according to the national weather agency.
Officials in New Zealand have released infrequent red wind warnings - the top caution category - in key areas including Canterbury and Wellington.
Locals have been advised to stay indoors, refrain from journeys, and prepare for further electricity and network failures.
Extensive Destruction and Crisis Measures
The power cut seems to be impacting homes mainly in the South Island, while authorities report that the electricity supply was being gradually reinstated.
Local media have reported that in some places roofs have been ripped off houses, and trees and electricity poles have been knocked down by the gales.
Across Wellington, a man was fatally injured after being struck by a falling limb at a popular trail walking spot on Tuesday.
Additionally in the city, a woman was pushed toward oncoming traffic on a road by a powerful blast, in a moment that was recorded in a viral dashcam video.
Air travel entering and leaving the city have been halted because of the weather, while some roads and libraries are not operating.
Meanwhile local leaders have declared a emergency situation, to facilitate recovery activities.
Work Stoppages Alongside Severe Conditions
The wild winds on today coincide with tens of thousands of educators, medical professionals and government employees take part in what has been termed a "significant labor action", requesting higher wages and enhanced employment terms.
But the extreme weather has forced them to change various scheduled activities, with several external protests relocated inside or called off.
Comparable winds are also sweeping Australia, causing a period of extreme heat to the nation's interior regions.
Officials have issued fire bans for apprehension regarding forest fires.
