Intense winds hitting speeds of approximately 155km/h (96mph) have left around 90,000 homes without power and forced officials to call off over 100 aircraft departures, as reported by local media.
The winds are impacting the complete southern region and southern parts of the North Island, according to the weather forecasting body.
The nation's agencies have released uncommon high-level wind alerts - the highest alert level - in central regions including Wellington and Canterbury.
Residents have been urged to avoid going outside, refrain from journeys, and prepare for additional utility disruptions.
Widespread Impact and Crisis Response
The electricity loss seems to be impacting residences mainly in the South Island, while officials state that energy was being slowly brought back.
Regional news have stated that in various locations homes have lost their roofs, while trees and electricity poles have been toppled by the gales.
In Wellington, a man was fatally injured after being struck by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a female was pushed toward approaching vehicles on a thoroughfare by a strong gust of wind, in a incident that was filmed in a widely shared car camera footage.
Flights in and out of the metropolis have been suspended because of the gusts, and some roads and libraries are also closed.
Simultaneously authorities in Canterbury have declared a crisis declaration, to assist recovery activities.
Work Stoppages Alongside Severe Weather
The powerful gales on today come as numerous of educators, medical professionals and government employees are engaged in what has been described as a "significant labor action", calling for higher wages and enhanced employment terms.
However the extreme weather has compelled them to alter various scheduled activities, with some outdoor rallies shifted to interior venues or abandoned.
Comparable winds are affecting the nearby nation, bringing a high-temperature event to the nation's interior regions.
Agencies have issued fire bans for concern about wildfires.