Powerful gusts reaching speeds of approximately 155km/h (96mph) have caused nearly 90,000 properties experiencing outages and forced agencies to halt over 100 flights, based on regional news sources.
The winds are influencing the entire southern region and lower areas of the North Island, according to the weather forecasting body.
The nation's agencies have released uncommon severe gust advisories - the top caution category - in key areas encompassing these major districts.
Residents have been advised to stay indoors, stay off roads, and get ready for additional electricity and network failures.
Widespread Impact and Crisis Response
The power cut seems to be impacting homes mainly in the South Island, while authorities say that power was being gradually reinstated.
Domestic outlets have indicated that in various locations roofs have been ripped off houses, while power lines and trees have been brought down by the winds.
Across Wellington, a person was lost his life after being impacted by a tree branch at a frequent walking route on earlier this week.
Additionally in the city, a woman was blown onto approaching vehicles on a street by a powerful blast, in a moment that was filmed in a popular vehicle recording.
Aircraft services to and from the metropolis have been cancelled because of the gusts, while certain highways and community centers are shut down.
At the same time local leaders have announced a emergency situation, to assist recovery activities.
Labor Protests Alongside Harsh Weather
The wild winds on Thursday occur while numerous of educators, medical professionals and government employees take part in what has been termed a "significant labor action", demanding higher wages and enhanced employment terms.
Yet the severe conditions has forced them to change some of their plans, with some outdoor rallies moved indoors or called off.
Similar gusts are affecting the nearby nation, causing a high-temperature event to the remote areas.
Agencies have announced burning restrictions for fear of bushfires.
