Intense winds hitting speeds of approximately 155km/h (96mph) have resulted in nearly 90,000 homes lacking electricity and led agencies to halt more than 100 aircraft departures, according to local media.
The gales are impacting the entire southern region and lower areas of the North Island, per the country's meteorological service.
The nation's agencies have released uncommon red wind warnings - the most severe warning - in core zones such as Wellington and Canterbury.
Locals have been advised to remain inside, stay off roads, and get ready for more utility disruptions.
Extensive Damage and Emergency Measures
This outage is primarily influencing homes mostly in the South Island, though officials say that the electricity supply was being gradually reinstated.
Domestic outlets have stated that in some places homes have lost their roofs, and trees and electricity poles have been knocked down by the gusts.
Within the capital, a individual was fatally injured after being impacted by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was blown onto approaching vehicles on a road by a strong gust of wind, in a moment that was filmed in a viral dashcam video.
Air travel entering and leaving the urban area have been cancelled due to the gusts, while some roads and libraries are also closed.
At the same time authorities in Canterbury have announced a state of emergency, to support disaster response efforts.
Strike Action Amid Extreme Conditions
These intense gusts on Thursday come as numerous of school staff, physicians and civil servants are participating in what has been termed a "significant labor action", calling for better pay and working conditions.
But the severe conditions has compelled them to alter various scheduled activities, with various open-air gatherings moved indoors or cancelled.
Comparable winds are impacting the neighboring country, ushering in a high-temperature event to the country's outback.
Officials have issued flame prohibitions for concern about bushfires.
