Intense gusts hitting velocities of up to 155km/h (96mph) have left around 90,000 properties lacking electricity and led authorities to cancel more than 100 aircraft departures, based on local media.
The winds are affecting the complete South Island and southern sections of the North Island, per the country's meteorological service.
The nation's agencies have announced uncommon red wind warnings - the most severe warning - in central regions encompassing Wellington and Canterbury.
People have been encouraged to remain inside, refrain from journeys, and make arrangements for additional utility disruptions.
Extensive Impact and Emergency Response
The power cut is primarily influencing households mainly in the South Island, although agencies say that power was being gradually reinstated.
Domestic outlets have stated that in certain areas structures have suffered roof damage, and trees and electricity poles have been brought down by the winds.
Within the capital, a person was fatally injured after being impacted by a tree branch at a frequent walking route on earlier this week.
Meanwhile in Wellington, a woman was pushed toward moving cars on a street by a intensive burst, in a event that was captured in a popular vehicle recording.
Flights in and out of the city have been suspended as a result of the gusts, whereas certain highways and community centers are shut down.
Meanwhile Canterbury officials have announced a emergency situation, to support disaster response efforts.
Labor Protests During Severe Conditions
These intense gusts on today coincide with numerous of educators, medical professionals and government employees are engaged in what has been termed a "mega strike", requesting improved salaries and workplace environments.
Yet the intense climate has pressured them to modify some of their plans, with several external protests shifted to interior venues or cancelled.
Similar gusts are affecting the nearby nation, causing a heatwave to the nation's interior regions.
Authorities have issued flame prohibitions for concern about bushfires.