Intense gusts attaining speeds of up to 155km/h (96mph) have left approximately 90,000 properties lacking electricity and led authorities to halt over 100 air travel services, as reported by domestic outlets.
The gales are influencing the complete South Island and southern sections of the North Island, according to the national weather agency.
The nation's agencies have issued infrequent red wind warnings - the most severe warning - in core zones such as Wellington and Canterbury.
Locals have been encouraged to stay indoors, avoid travel, and make arrangements for additional electricity and network failures.
Widespread Impact and Crisis Measures
This outage is primarily influencing households predominantly in the South Island, though officials report that the electricity supply was being restored progressively.
Domestic outlets have indicated that in certain areas roofs have been ripped off houses, whereas utility poles and vegetation have been brought down by the gales.
In Wellington, a man was killed after being impacted by a falling limb at a frequent walking route on Tuesday.
Also in the capital, a female was swept into oncoming traffic on a street by a strong gust of wind, in a event that was captured in a widely shared car camera footage.
Air travel entering and leaving the metropolis have been suspended as a result of the gusts, while various routes and public facilities are not operating.
At the same time Canterbury officials have issued a emergency situation, to facilitate emergency management operations.
Strike Action Amid Extreme Conditions
The powerful gales on Thursday occur while many of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", calling for improved salaries and workplace environments.
Yet the extreme weather has pressured them to alter various scheduled activities, with various open-air gatherings moved indoors or cancelled.
Comparable winds are also sweeping the neighboring country, causing a high-temperature event to the nation's interior regions.
Officials have issued burning restrictions for apprehension regarding bushfires.
