Powerful gusts hitting speeds of approximately 155km/h (96mph) have left approximately 90,000 homes without power and forced authorities to halt more than 100 flights, according to domestic outlets.
The gales are affecting the complete southern region and southern parts of the northern region, as stated by the national weather agency.
New Zealand authorities have announced infrequent red wind warnings - the highest alert level - in central regions encompassing Canterbury and Wellington.
Residents have been advised to stay indoors, avoid travel, and prepare for further electricity and network failures.
Broad Impact and Crisis Response
The power cut appears to be affecting residences mostly in the southern region, though authorities state that the electricity supply was being slowly brought back.
Regional news have stated that in some places structures have suffered roof damage, and trees and electricity poles have been knocked down by the gusts.
In Wellington, a man was killed after being impacted by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a female was pushed toward approaching vehicles on a road by a strong gust of wind, in a incident that was filmed in a widely shared car camera footage.
Aircraft services entering and leaving the city have been cancelled because of the winds, whereas certain highways and community centers are not operating.
Simultaneously Canterbury officials have announced a emergency situation, to support recovery activities.
Labor Protests During Severe Weather
The wild winds on Thursday coincide with tens of thousands of teachers, doctors and other public workers take part in what has been described as a "major walkout", demanding improved salaries and workplace environments.
Yet the severe conditions has compelled them to change various scheduled activities, with various open-air gatherings moved indoors or cancelled.
Like conditions are impacting the nearby nation, ushering in a high-temperature event to the country's outback.
Agencies have declared burning restrictions for concern about forest fires.
