Severe gusts hitting speeds of as high as 155km/h (96mph) have caused nearly 90,000 properties lacking electricity and forced authorities to halt over 100 flights, according to domestic outlets.
The winds are influencing the whole South Island and southern sections of the northern region, per the weather forecasting body.
New Zealand authorities have announced uncommon severe gust advisories - the most severe warning - in core zones including Canterbury and Wellington.
Residents have been advised to avoid going outside, stay off roads, and prepare for more power and communication outages.
Widespread Impact and Crisis Response
The power cut is primarily influencing households predominantly in the South Island, although officials report that energy was being gradually reinstated.
Domestic outlets have reported that in various locations roofs have been ripped off houses, and power lines and trees have been brought down by the gales.
Within the capital, a person was killed after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was blown onto approaching vehicles on a street by a powerful blast, in a incident that was captured in a viral dashcam video.
Flights to and from the urban area have been cancelled due to the weather, and certain highways and community centers are not operating.
Meanwhile local leaders have announced a emergency situation, to assist disaster response efforts.
Work Stoppages Amid Severe Weather
The wild winds on this day come as numerous of educators, medical professionals and government employees are participating in what has been termed a "major walkout", demanding better pay and working conditions.
Yet the severe conditions has forced them to modify some of their plans, with some outdoor rallies moved indoors or called off.
Similar gusts are also sweeping Australia, causing a high-temperature event to the country's outback.
Agencies have announced flame prohibitions for apprehension regarding forest fires.
