Severe gusts attaining velocities of as high as 155km/h (96mph) have left approximately 90,000 properties lacking electricity and led officials to cancel more than 100 flights, based on regional news sources.
The gales are influencing the whole South Island and lower areas of the northern region, as stated by the weather forecasting body.
The nation's agencies have issued uncommon high-level wind alerts - the highest alert level - in core zones encompassing these major districts.
Locals have been urged to remain inside, avoid travel, and make arrangements for additional power and communication outages.
Extensive Destruction and Crisis Response
This outage seems to be impacting homes mostly in the South Island, though authorities say that energy was being slowly brought back.
Local media have stated that in some places homes have lost their roofs, while utility poles and vegetation have been brought down by the winds.
Across Wellington, a individual was fatally injured after being struck by a falling limb at a frequent walking route on earlier this week.
Also in the capital, a woman was pushed toward approaching vehicles on a thoroughfare by a powerful blast, in a incident that was recorded in a popular vehicle recording.
Flights entering and leaving the metropolis have been suspended due to the weather, while some roads and libraries are also closed.
Meanwhile Canterbury officials have declared a emergency situation, to facilitate recovery activities.
Strike Action Amid Severe Conditions
The powerful gales on today come as many of school staff, physicians and civil servants are engaged in what has been described as a "significant labor action", requesting better pay and working conditions.
But the extreme weather has compelled them to modify some of their plans, with some outdoor rallies relocated inside or abandoned.
Comparable winds are affecting the nearby nation, causing a high-temperature event to the remote areas.
Authorities have announced burning restrictions for fear of bushfires.