Powerful gusts reaching velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties experiencing outages and compelled agencies to halt in excess of 100 flights, based on local media.
The winds are affecting the whole South Island and southern parts of the northern region, according to the national weather agency.
Officials in New Zealand have announced infrequent red wind warnings - the top caution category - in core zones such as Canterbury and Wellington.
Locals have been urged to stay indoors, avoid travel, and prepare for additional electricity and network failures.
Broad Damage and Crisis Response
The power cut seems to be impacting residences predominantly in the southern region, though agencies state that power was being gradually reinstated.
Regional news have reported that in some places roofs have been ripped off houses, while trees and electricity poles have been toppled by the winds.
In Wellington, a man was lost his life after being struck by a wooden fragment at a well-known hiking path on Tuesday.
Additionally in the city, a woman was pushed toward oncoming traffic on a thoroughfare by a strong gust of wind, in a incident that was recorded in a popular vehicle recording.
Air travel entering and leaving the city have been halted as a result of the winds, whereas certain highways and community centers are not operating.
Simultaneously local leaders have announced a crisis declaration, to support emergency management operations.
Labor Protests Alongside Severe Weather
These intense gusts on today come as numerous of educators, medical professionals and government employees are engaged in what has been termed a "major walkout", demanding better pay and working conditions.
However the extreme weather has pressured them to modify some of their plans, with several external protests relocated inside or called off.
Comparable winds are also sweeping Australia, bringing a high-temperature event to the nation's interior regions.
Officials have issued burning restrictions for apprehension regarding forest fires.
