Powerful winds hitting velocities of approximately 155km/h (96mph) have resulted in around 90,000 homes without power and compelled authorities to halt over 100 air travel services, as reported by local media.
The winds are impacting the entire South Island and lower areas of the North Island, according to the country's meteorological service.
The nation's agencies have announced infrequent red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
Residents have been encouraged to stay indoors, avoid travel, and make arrangements for additional utility disruptions.
Widespread Destruction and Emergency Response
The power cut is primarily influencing homes predominantly in the southern region, although authorities report that energy was being slowly brought back.
Domestic outlets have indicated that in some places homes have lost their roofs, while power lines and trees have been knocked down by the gusts.
Across Wellington, a man was fatally injured after being impacted by a falling limb at a well-known hiking path on earlier this week.
Additionally in the city, a individual was pushed toward oncoming traffic on a road by a strong gust of wind, in a event that was captured in a popular vehicle recording.
Flights entering and leaving the city have been suspended as a result of the weather, while various routes and public facilities are also closed.
Simultaneously Canterbury officials have issued a crisis declaration, to support emergency management operations.
Work Stoppages Amid Severe Weather
These intense gusts on Thursday coincide with numerous of educators, medical professionals and government employees take part in what has been described as a "mega strike", demanding better pay and working conditions.
But the severe conditions has pressured them to alter some of their plans, with some outdoor rallies shifted to interior venues or cancelled.
Similar gusts are affecting the nearby nation, ushering in a period of extreme heat to the remote areas.
Agencies have declared burning restrictions for fear of bushfires.
