Powerful gusts attaining velocities of as high as 155km/h (96mph) have caused around 90,000 homes experiencing outages and led agencies to cancel more than 100 aircraft departures, as reported by domestic outlets.
The winds are affecting the complete southern region and southern sections of the North Island, according to the national weather agency.
New Zealand authorities have issued infrequent severe gust advisories - the top caution category - in central regions including Canterbury and Wellington.
Residents have been urged to stay indoors, stay off roads, and get ready for further power and communication outages.
Widespread Impact and Emergency Measures
This outage seems to be impacting households mainly in the southern region, although authorities report that energy was being gradually reinstated.
Local media have reported that in some places homes have lost their roofs, while trees and electricity poles have been toppled by the gusts.
In Wellington, a individual was fatally injured after being impacted by a wooden fragment at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was swept into moving cars on a street by a powerful blast, in a incident that was filmed in a popular vehicle recording.
Aircraft services in and out of the metropolis have been cancelled due to the weather, while various routes and public facilities are also closed.
At the same time local leaders have announced a crisis declaration, to facilitate disaster response efforts.
Strike Action During Severe Weather
The powerful gales on today come as many of educators, medical professionals and government employees are participating in what has been called a "mega strike", demanding higher wages and enhanced employment terms.
But the intense climate has forced them to alter some of their plans, with some outdoor rallies moved indoors or abandoned.
Similar gusts are affecting Australia, causing a heatwave to the nation's interior regions.
Officials have issued burning restrictions for concern about wildfires.
