Severe gusts attaining velocities of as high as 155km/h (96mph) have caused around 90,000 properties experiencing outages and led authorities to halt over 100 aircraft departures, according to domestic outlets.
The winds are impacting the complete South Island and lower areas of the northern region, according to the weather forecasting body.
Officials in New Zealand have released uncommon red wind warnings - the top caution category - in core zones such as these major districts.
People have been advised to stay indoors, stay off roads, and get ready for further power and communication outages.
Widespread Impact and Emergency Response
This outage is primarily influencing households mainly in the southern region, while agencies state that the electricity supply was being gradually reinstated.
Domestic outlets have reported that in certain areas structures have suffered roof damage, and trees and electricity poles have been brought down by the gales.
Across Wellington, a person was fatally injured after being hit by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a individual was pushed toward moving cars on a thoroughfare by a strong gust of wind, in a incident that was captured in a widely shared car camera footage.
Aircraft services in and out of the city have been cancelled due to the weather, whereas various routes and public facilities are not operating.
At the same time Canterbury officials have declared a emergency situation, to assist disaster response efforts.
Labor Protests Amid Extreme Weather
The powerful gales on today coincide with tens of thousands of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", requesting better pay and working conditions.
However the intense climate has forced them to modify various scheduled activities, with some outdoor rallies relocated inside or abandoned.
Like conditions are impacting Australia, ushering in a period of extreme heat to the remote areas.
Officials have issued flame prohibitions for concern about bushfires.
