Powerful gusts hitting velocities of approximately 155km/h (96mph) have resulted in approximately 90,000 households without power and led agencies to halt more than 100 air travel services, based on local media.
The gales are impacting the whole South Island and lower areas of the North Island, as stated by the weather forecasting body.
New Zealand authorities have issued rare high-level wind alerts - the highest alert level - in core zones such as Wellington and Canterbury.
Locals have been urged to remain inside, avoid travel, and get ready for more utility disruptions.
Extensive Impact and Crisis Measures
The electricity loss seems to be impacting households mostly in the southern region, though authorities say that the electricity supply was being restored progressively.
Regional news have stated that in various locations roofs have been ripped off houses, while trees and electricity poles have been knocked down by the gusts.
In Wellington, a person was killed after being impacted by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was pushed toward moving cars on a street by a strong gust of wind, in a incident that was filmed in a popular vehicle recording.
Air travel entering and leaving the urban area have been cancelled due to the winds, whereas some roads and libraries are also closed.
At the same time local leaders have declared a emergency situation, to facilitate emergency management operations.
Labor Protests Amid Extreme Weather
These intense gusts on Thursday come as many of educators, medical professionals and government employees take part in what has been called a "mega strike", calling for higher wages and enhanced employment terms.
But the severe conditions has compelled them to change certain arrangements, with several external protests moved indoors or called off.
Comparable winds are affecting the neighboring country, causing a high-temperature event to the nation's interior regions.
Agencies have announced burning restrictions for concern about forest fires.
