Intense gusts attaining speeds of as high as 155km/h (96mph) have resulted in approximately 90,000 properties experiencing outages and led authorities to halt more than 100 flights, based on regional news sources.
The winds are influencing the entire southern region and southern parts of the North Island, as stated by the weather forecasting body.
The nation's agencies have issued infrequent severe gust advisories - the top caution category - in key areas encompassing Wellington and Canterbury.
People have been advised to stay indoors, avoid travel, and get ready for more utility disruptions.
Extensive Damage and Crisis Response
The power cut seems to be impacting homes mostly in the southern region, though authorities state that the electricity supply was being gradually reinstated.
Regional news have reported that in certain areas structures have suffered roof damage, and power lines and trees have been knocked down by the gales.
In Wellington, a man was fatally injured after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a individual was swept into approaching vehicles on a street by a powerful blast, in a event that was filmed in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been cancelled because of the weather, whereas certain highways and community centers are also closed.
At the same time Canterbury officials have issued a crisis declaration, to support emergency management operations.
Strike Action Amid Extreme Weather
These intense gusts on today come as tens of thousands of school staff, physicians and civil servants are participating in what has been termed a "major walkout", requesting higher wages and enhanced employment terms.
But the intense climate has compelled them to modify certain arrangements, with various open-air gatherings moved indoors or cancelled.
Like conditions are impacting Australia, ushering in a heatwave to the remote areas.
Authorities have issued burning restrictions for concern about bushfires.
