Powerful gusts attaining speeds of as high as 155km/h (96mph) have resulted in around 90,000 households lacking electricity and led officials to call off over 100 aircraft departures, based on local media.
The winds are affecting the entire South Island and southern sections of the North Island, according to the national weather agency.
Officials in New Zealand have issued rare high-level wind alerts - the highest alert level - in key areas including these major districts.
Residents have been advised to stay indoors, refrain from journeys, and get ready for additional power and communication outages.
Widespread Impact and Crisis Measures
The power cut appears to be affecting residences mostly in the southern region, although authorities say that the electricity supply was being gradually reinstated.
Regional news have indicated that in some places structures have suffered roof damage, and power lines and trees have been knocked down by the gusts.
Across Wellington, a man was lost his life after being impacted by a wooden fragment at a frequent walking route on earlier this week.
Additionally in the city, a female was blown onto approaching vehicles on a thoroughfare by a powerful blast, in a moment that was captured in a viral dashcam video.
Aircraft services to and from the metropolis have been suspended as a result of the weather, while various routes and public facilities are shut down.
Simultaneously local leaders have issued a emergency situation, to assist disaster response efforts.
Work Stoppages Alongside Severe Weather
The wild winds on today come as many of teachers, doctors and other public workers take part in what has been described as a "significant labor action", demanding better pay and working conditions.
But the severe conditions has forced them to change certain arrangements, with several external protests shifted to interior venues or called off.
Comparable winds are impacting the nearby nation, ushering in a period of extreme heat to the country's outback.
Authorities have issued fire bans for fear of bushfires.
