Severe gusts reaching speeds of up to 155km/h (96mph) have resulted in around 90,000 homes lacking electricity and led agencies to halt more than 100 flights, as reported by domestic outlets.
The winds are impacting the complete southern region and southern sections of the North Island, per the weather forecasting body.
The nation's agencies have released uncommon severe gust advisories - the most severe warning - in key areas encompassing Wellington and Canterbury.
Locals have been urged to remain inside, avoid travel, and prepare for more utility disruptions.
Extensive Destruction and Emergency Response
This outage seems to be impacting homes mainly in the South Island, though authorities say that energy was being gradually reinstated.
Domestic outlets have stated that in various locations roofs have been ripped off houses, and power lines and trees have been toppled by the gusts.
In Wellington, a man was lost his life after being impacted by a tree branch at a well-known hiking path on earlier this week.
Also in the capital, a individual was blown onto oncoming traffic on a thoroughfare by a intensive burst, in a incident that was captured in a popular vehicle recording.
Air travel to and from the urban area have been halted due to the weather, whereas certain highways and community centers are shut down.
Meanwhile local leaders have announced a crisis declaration, to assist emergency management operations.
Labor Protests During Severe Weather
The wild winds on Thursday coincide with tens of thousands of school staff, physicians and civil servants are participating in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
However the severe conditions has compelled them to alter certain arrangements, with several external protests moved indoors or called off.
Comparable winds are also sweeping Australia, causing a heatwave to the country's outback.
Agencies have declared flame prohibitions for concern about wildfires.