Intense gusts attaining velocities of approximately 155km/h (96mph) have caused nearly 90,000 homes without power and compelled authorities to cancel in excess of 100 air travel services, based on domestic outlets.
These gusts are impacting the complete southern region and southern parts of the North Island, according to the weather forecasting body.
New Zealand authorities have released rare high-level wind alerts - the highest alert level - in core zones encompassing Canterbury and Wellington.
Residents have been urged to remain inside, refrain from journeys, and get ready for further utility disruptions.
Widespread Impact and Emergency Measures
The electricity loss is primarily influencing households predominantly in the southern region, although authorities report that energy was being slowly brought back.
Domestic outlets have reported that in some places roofs have been ripped off houses, whereas trees and electricity poles have been toppled by the winds.
In Wellington, a man was lost his life after being struck by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was swept into approaching vehicles on a road by a intensive burst, in a moment that was captured in a widely shared car camera footage.
Flights in and out of the city have been halted due to the weather, and various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have issued a crisis declaration, to facilitate recovery activities.
Strike Action Amid Harsh Weather
These intense gusts on Thursday come as many of educators, medical professionals and government employees are participating in what has been termed a "major walkout", demanding improved salaries and workplace environments.
But the intense climate has forced them to alter certain arrangements, with several external protests moved indoors or called off.
Similar gusts are impacting Australia, bringing a high-temperature event to the country's outback.
Agencies have issued fire bans for concern about bushfires.