Intense gusts hitting speeds of approximately 155km/h (96mph) have caused approximately 90,000 households lacking electricity and led agencies to halt more than 100 aircraft departures, as reported by local media.
The winds are impacting the entire southern region and southern sections of the northern region, per the country's meteorological service.
Officials in New Zealand have announced rare severe gust advisories - the top caution category - in central regions encompassing Canterbury and Wellington.
Residents have been advised to remain inside, avoid travel, and get ready for further electricity and network failures.
Broad Impact and Crisis Response
This outage appears to be affecting residences predominantly in the South Island, while agencies state that power was being gradually reinstated.
Domestic outlets have indicated that in some places structures have suffered roof damage, and power lines and trees have been brought down by the gales.
Within the capital, a individual was lost his life after being struck by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a woman was swept into moving cars on a thoroughfare by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Aircraft services entering and leaving the city have been halted as a result of the winds, whereas certain highways and community centers are shut down.
Meanwhile Canterbury officials have announced a crisis declaration, to assist emergency management operations.
Labor Protests Alongside Severe Weather
These intense gusts on Thursday coincide with tens of thousands of teachers, doctors and other public workers are engaged in what has been called a "mega strike", calling for better pay and working conditions.
But the extreme weather has pressured them to change some of their plans, with several external protests relocated inside or called off.
Similar gusts are affecting Australia, ushering in a period of extreme heat to the remote areas.
Agencies have announced fire bans for apprehension regarding forest fires.