Powerful winds attaining velocities of approximately 155km/h (96mph) have left around 90,000 properties experiencing outages and led agencies to call off more than 100 flights, based on local media.
These gusts are influencing the complete southern region and lower areas of the North Island, according to the weather forecasting body.
The nation's agencies have announced uncommon severe gust advisories - the highest alert level - in key areas such as these major districts.
Locals have been encouraged to avoid going outside, refrain from journeys, and make arrangements for more power and communication outages.
Widespread Destruction and Emergency Measures
The electricity loss appears to be affecting homes mainly in the southern region, though agencies report that power was being slowly brought back.
Local media have reported that in various locations structures have suffered roof damage, while trees and electricity poles have been knocked down by the gusts.
In Wellington, a person was killed after being struck by a wooden fragment at a well-known hiking path on earlier this week.
Additionally in the city, a individual was blown onto oncoming traffic on a thoroughfare by a strong gust of wind, in a incident that was filmed in a popular vehicle recording.
Flights in and out of the metropolis have been halted as a result of the gusts, and some roads and libraries are also closed.
At the same time authorities in Canterbury have issued a state of emergency, to support disaster response efforts.
Work Stoppages During Harsh Conditions
The wild winds on this day coincide with numerous of teachers, doctors and other public workers are participating in what has been termed a "significant labor action", calling for improved salaries and workplace environments.
But the intense climate has pressured them to alter certain arrangements, with some outdoor rallies shifted to interior venues or cancelled.
Comparable winds are also sweeping Australia, bringing a high-temperature event to the country's outback.
Agencies have announced fire bans for concern about bushfires.