Powerful gales attaining speeds of approximately 155km/h (96mph) have left around 90,000 homes experiencing outages and led authorities to halt more than 100 flights, according to regional news sources.
The winds are impacting the complete southern region and southern sections of the northern region, as stated by the weather forecasting body.
The nation's agencies have issued rare high-level wind alerts - the highest alert level - in key areas including Wellington and Canterbury.
People have been advised to stay indoors, stay off roads, and get ready for further power and communication outages.
Broad Destruction and Emergency Response
The power cut is primarily influencing households mainly in the South Island, although agencies report that power was being gradually reinstated.
Domestic outlets have indicated that in some places roofs have been ripped off houses, and trees and electricity poles have been knocked down by the winds.
Across Wellington, a person was killed after being hit by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a individual was pushed toward approaching vehicles on a street by a powerful blast, in a moment that was filmed in a viral dashcam video.
Aircraft services to and from the urban area have been suspended because of the weather, and some roads and libraries are shut down.
Meanwhile Canterbury officials have issued a state of emergency, to facilitate recovery activities.
Strike Action Amid Severe Weather
These intense gusts on this day come as many of school staff, physicians and civil servants take part in what has been called a "significant labor action", requesting higher wages and enhanced employment terms.
However the intense climate has forced them to modify various scheduled activities, with several external protests relocated inside or called off.
Like conditions are also sweeping the nearby nation, bringing a heatwave to the remote areas.
Officials have declared flame prohibitions for apprehension regarding bushfires.
