Severe winds hitting velocities of up to 155km/h (96mph) have left around 90,000 households without power and forced authorities to halt in excess of 100 air travel services, based on local media.
The gales are impacting the entire southern region and southern sections of the North Island, per the national weather agency.
Officials in New Zealand have announced rare high-level wind alerts - the highest alert level - in core zones such as Canterbury and Wellington.
Residents have been advised to stay indoors, stay off roads, and prepare for more utility disruptions.
Extensive Destruction and Emergency Response
The power cut is primarily influencing households mainly in the South Island, though officials state that energy was being gradually reinstated.
Domestic outlets have indicated that in certain areas structures have suffered roof damage, and trees and electricity poles have been brought down by the gales.
Within the capital, a person was killed after being hit by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a female was blown onto oncoming traffic on a street by a intensive burst, in a incident that was recorded in a widely shared car camera footage.
Aircraft services to and from the city have been cancelled due to the gusts, whereas various routes and public facilities are not operating.
At the same time authorities in Canterbury have announced a state of emergency, to support emergency management operations.
Labor Protests Alongside Severe Conditions
The powerful gales on today come as tens of thousands of educators, medical professionals and government employees take part in what has been termed a "mega strike", requesting better pay and working conditions.
But the intense climate has compelled them to change some of their plans, with various open-air gatherings moved indoors or called off.
Like conditions are affecting the neighboring country, ushering in a high-temperature event to the remote areas.
Authorities have declared flame prohibitions for apprehension regarding bushfires.
