Intense gusts attaining velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and forced officials to call off over 100 aircraft departures, based on local media.
These gusts are affecting the whole South Island and southern parts of the northern region, per the weather forecasting body.
The nation's agencies have issued infrequent red wind warnings - the top caution category - in central regions encompassing these major districts.
Residents have been urged to remain inside, avoid travel, and make arrangements for additional utility disruptions.
Broad Impact and Crisis Response
The power cut is primarily influencing homes predominantly in the South Island, although officials report that energy was being restored progressively.
Local media have stated that in certain areas roofs have been ripped off houses, whereas trees and electricity poles have been toppled by the gusts.
Across Wellington, a person 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 oncoming traffic on a road by a strong gust of wind, in a incident that was recorded in a viral dashcam video.
Air travel in and out of the city have been halted as a result of the weather, whereas various routes and public facilities are also closed.
At the same time authorities in Canterbury have declared a emergency situation, to support emergency management operations.
Strike Action Alongside Severe Weather
The powerful gales on this day come as tens of thousands of teachers, doctors and other public workers are engaged in what has been described as a "mega strike", requesting improved salaries and workplace environments.
But the severe conditions has pressured them to alter certain arrangements, with some outdoor rallies relocated inside or abandoned.
Comparable winds are impacting the nearby nation, bringing a high-temperature event to the remote areas.
Officials have declared flame prohibitions for concern about bushfires.
