Powerful gales hitting velocities of as high as 155km/h (96mph) have resulted in around 90,000 homes without power and compelled authorities to call off more than 100 flights, based on local media.
The winds are influencing the entire South Island and southern sections of the northern region, as stated by the national weather agency.
New Zealand authorities have issued infrequent red wind warnings - the most severe warning - in central regions such as Wellington and Canterbury.
People have been advised to avoid going outside, avoid travel, and make arrangements for further electricity and network failures.
Widespread Destruction and Emergency Measures
This outage is primarily influencing households mainly in the southern region, while officials say that power was being gradually reinstated.
Domestic outlets have reported that in some places roofs have been ripped off houses, and trees and electricity poles have been knocked down by the gusts.
Across Wellington, a person was fatally injured after being hit by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a woman was pushed toward moving cars on a road by a intensive burst, in a moment that was filmed in a widely shared car camera footage.
Aircraft services entering and leaving the metropolis have been cancelled due to the weather, whereas certain highways and community centers are not operating.
At the same time Canterbury officials have announced a crisis declaration, to assist disaster response efforts.
Labor Protests Amid Harsh Weather
The wild winds on Thursday occur while numerous of school staff, physicians and civil servants are participating in what has been termed a "mega strike", requesting improved salaries and workplace environments.
But the severe conditions has compelled them to change certain arrangements, with several external protests moved indoors or abandoned.
Comparable winds are affecting the neighboring country, ushering in a high-temperature event to the remote areas.
Agencies have issued flame prohibitions for concern about forest fires.
