Severe winds attaining velocities of up to 155km/h (96mph) have left around 90,000 homes without power and forced authorities to halt over 100 air travel services, according to domestic outlets.
The winds are affecting the whole southern region and lower areas of the North Island, per the weather forecasting body.
New Zealand authorities have issued infrequent high-level wind alerts - the most severe warning - in key areas including these major districts.
People have been urged to avoid going outside, stay off roads, and get ready for more utility disruptions.
Extensive Damage and Crisis Response
The power cut seems to be impacting residences predominantly in the South Island, though officials say that energy was being gradually reinstated.
Domestic outlets have reported that in certain areas roofs have been ripped off houses, while trees and electricity poles have been brought down by the winds.
Within the capital, a man was fatally injured after being struck by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was pushed toward approaching vehicles on a road by a powerful blast, in a incident that was recorded in a popular vehicle recording.
Flights in and out of the city have been suspended as a result of the winds, and various routes and public facilities are also closed.
Simultaneously local leaders have announced a emergency situation, to assist recovery activities.
Labor Protests Amid Harsh Weather
These intense gusts on this day coincide with tens of thousands of teachers, doctors and other public workers are participating in what has been termed a "major walkout", requesting better pay and working conditions.
Yet the intense climate has pressured them to change some of their plans, with several external protests relocated inside or abandoned.
Similar gusts are impacting the nearby nation, bringing a period of extreme heat to the country's outback.
Authorities have issued fire bans for fear of forest fires.
