Powerful winds attaining velocities of approximately 155km/h (96mph) have resulted in around 90,000 homes without power and compelled officials to cancel more than 100 air travel services, as reported by local media.
The winds are affecting the entire South Island and southern sections of the North Island, per the country's meteorological service.
The nation's agencies have announced infrequent severe gust advisories - the most severe warning - in core zones including Canterbury and Wellington.
Residents have been encouraged to avoid going outside, refrain from journeys, and prepare for further electricity and network failures.
Extensive Impact and Emergency Response
The electricity loss is primarily influencing households predominantly in the southern region, although officials state that power was being restored progressively.
Regional news have indicated that in various locations homes have lost their roofs, while utility poles and vegetation have been brought down by the gales.
Across Wellington, a man was killed after being struck by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a female was blown onto approaching vehicles on a thoroughfare by a powerful blast, in a event that was recorded in a popular vehicle recording.
Flights entering and leaving the urban area have been cancelled because of the weather, and various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have issued a crisis declaration, to support emergency management operations.
Strike Action Amid Harsh Weather
The powerful gales on Thursday coincide with tens of thousands of teachers, doctors and other public workers are engaged in what has been described as a "major walkout", demanding higher wages and enhanced employment terms.
But the extreme weather has compelled them to modify some of their plans, with various open-air gatherings relocated inside or abandoned.
Comparable winds are affecting the neighboring country, bringing a period of extreme heat to the remote areas.
Authorities have declared burning restrictions for apprehension regarding bushfires.
