Severe gales reaching velocities of up to 155km/h (96mph) have left around 90,000 homes without power and compelled authorities to halt more than 100 flights, according to domestic outlets.
These gusts are influencing the complete South Island and southern parts of the northern region, as stated by the country's meteorological service.
Officials in New Zealand have released infrequent severe gust advisories - the most severe warning - in central regions encompassing Wellington and Canterbury.
Residents have been urged to remain inside, stay off roads, and prepare for more electricity and network failures.
Extensive Damage and Emergency Response
This outage appears to be affecting residences mostly in the southern region, although agencies say that energy was being slowly brought back.
Regional news have stated that in certain areas structures have suffered roof damage, while trees and electricity poles have been brought down by the winds.
Within the capital, a man was lost his life after being struck by a tree branch at a well-known hiking path on earlier this week.
Also in the capital, a female was blown onto oncoming traffic on a street by a powerful blast, in a moment that was captured in a popular vehicle recording.
Air travel entering and leaving the city have been halted because of the weather, and various routes and public facilities are shut down.
Meanwhile local leaders have declared a state of emergency, to assist disaster response efforts.
Strike Action Amid Harsh Weather
The powerful gales on this day occur while numerous of educators, medical professionals and government employees are participating in what has been termed a "mega strike", calling for improved salaries and workplace environments.
But the extreme weather has pressured them to change certain arrangements, with several external protests shifted to interior venues or called off.
Similar gusts are also sweeping the neighboring country, ushering in a period of extreme heat to the remote areas.
Officials have announced burning restrictions for apprehension regarding forest fires.