Powerful winds attaining velocities of up to 155km/h (96mph) have caused approximately 90,000 properties lacking electricity and compelled officials to call off in excess of 100 air travel services, according to domestic outlets.
The winds are influencing the whole southern region and southern sections of the North Island, according to the country's meteorological service.
The nation's agencies have released rare severe gust advisories - the highest alert level - in key areas encompassing Wellington and Canterbury.
Residents have been advised to stay indoors, stay off roads, and make arrangements for more utility disruptions.
Extensive Impact and Emergency Response
The power cut appears to be affecting homes mostly in the South Island, although authorities say that the electricity supply was being restored progressively.
Domestic outlets have indicated that in certain areas homes have lost their roofs, whereas trees and electricity poles have been toppled by the gales.
Within the capital, a individual was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a individual was pushed toward approaching vehicles on a street by a intensive burst, in a incident that was captured in a widely shared car camera footage.
Aircraft services in and out of the metropolis have been cancelled as a result of the winds, while various routes and public facilities are shut down.
At the same time authorities in Canterbury have declared a state of emergency, to support emergency management operations.
Strike Action Amid Extreme Weather
These intense gusts on this day occur while many of educators, medical professionals and government employees are engaged in what has been called a "significant labor action", calling for improved salaries and workplace environments.
However the severe conditions has pressured them to modify certain arrangements, with several external protests shifted to interior venues or cancelled.
Similar gusts are also sweeping Australia, ushering in a high-temperature event to the country's outback.
Agencies have announced burning restrictions for apprehension regarding wildfires.