Intense gales reaching velocities of up to 155km/h (96mph) have resulted in approximately 90,000 households lacking electricity and compelled agencies to halt more than 100 air travel services, according to domestic outlets.
The winds are influencing the whole South Island and lower areas of the North Island, per the national weather agency.
The nation's agencies have announced uncommon severe gust advisories - the top caution category - in central regions encompassing Wellington and Canterbury.
Residents have been advised to remain inside, stay off roads, and get ready for additional utility disruptions.
Broad Destruction and Emergency Measures
The electricity loss seems to be impacting residences predominantly in the southern region, while officials state that power was being restored progressively.
Regional news have reported that in various locations roofs have been ripped off houses, while utility poles and vegetation have been knocked down by the gusts.
Within the capital, a man was killed after being impacted by a wooden fragment at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was swept into oncoming traffic on a street by a powerful blast, in a event that was recorded in a popular vehicle recording.
Air travel to and from the urban area have been suspended due to the winds, while various routes and public facilities are shut down.
At the same time local leaders have declared a emergency situation, to facilitate emergency management operations.
Strike Action Amid Severe Weather
The powerful gales on Thursday coincide with tens of thousands of educators, medical professionals and government employees are participating in what has been described as a "major walkout", calling for higher wages and enhanced employment terms.
However the intense climate has compelled them to change various scheduled activities, with several external protests relocated inside or abandoned.
Similar gusts are also sweeping Australia, bringing a high-temperature event to the remote areas.
Officials have issued burning restrictions for concern about wildfires.