Intense gusts hitting speeds of approximately 155km/h (96mph) have left around 90,000 homes lacking electricity and led authorities to halt over 100 aircraft departures, based on domestic outlets.
The gales are influencing the entire South Island and lower areas of the North Island, per the national weather agency.
New Zealand authorities have announced rare red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
Locals have been encouraged to remain inside, stay off roads, and prepare for more utility disruptions.
Widespread Impact and Crisis Response
The power cut is primarily influencing households mostly in the South Island, though agencies report that power was being slowly brought back.
Local media have indicated that in some places structures have suffered roof damage, while trees and electricity poles have been toppled by the gales.
In Wellington, a individual was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was pushed toward oncoming traffic on a street by a strong gust of wind, in a event that was filmed in a popular vehicle recording.
Air travel entering and leaving the city have been suspended as a result of the winds, and various routes and public facilities are also closed.
At the same time authorities in Canterbury have issued a state of emergency, to facilitate emergency management operations.
Work Stoppages Amid Harsh Conditions
These intense gusts on today coincide with tens of thousands of educators, medical professionals and government employees take part in what has been described as a "significant labor action", requesting improved salaries and workplace environments.
However the severe conditions has compelled them to change various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are impacting Australia, bringing a high-temperature event to the nation's interior regions.
Authorities have announced burning restrictions for apprehension regarding wildfires.
