Intense gales reaching velocities of up to 155km/h (96mph) have resulted in around 90,000 homes experiencing outages and compelled authorities to halt over 100 air travel services, according to domestic outlets.
The gales are impacting the complete southern region and lower areas of the northern region, per the country's meteorological service.
The nation's agencies have issued uncommon red wind warnings - the top caution category - in central regions such as Wellington and Canterbury.
People have been urged to stay indoors, avoid travel, and get ready for more utility disruptions.
Extensive Damage and Emergency Response
The power cut seems to be impacting homes mainly in the South Island, though officials state that the electricity supply was being slowly brought back.
Domestic outlets have reported that in various locations roofs have been ripped off houses, while power lines and trees have been brought down by the winds.
In Wellington, a person was killed after being struck by a wooden fragment at a frequent walking route on earlier this week.
Meanwhile in Wellington, a woman was blown onto approaching vehicles on a thoroughfare by a powerful blast, in a incident that was captured in a popular vehicle recording.
Air travel entering and leaving the metropolis have been cancelled because of the winds, while some roads and libraries are also closed.
Simultaneously local leaders have announced a state of emergency, to assist recovery activities.
Work Stoppages Amid Severe Weather
These intense gusts on Thursday coincide with many of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", calling for better pay and working conditions.
However the extreme weather has forced them to alter some of their plans, with several external protests relocated inside or called off.
Comparable winds are also sweeping the neighboring country, ushering in a heatwave to the country's outback.
Officials have issued fire bans for concern about bushfires.
