Severe gusts attaining velocities of approximately 155km/h (96mph) have caused nearly 90,000 households lacking electricity and forced officials to cancel over 100 air travel services, according to local media.
The gales are impacting the whole southern region and southern parts of the northern region, according to the weather forecasting body.
New Zealand authorities have released infrequent severe gust advisories - the most severe warning - in central regions such as Wellington and Canterbury.
People have been urged to remain inside, stay off roads, and make arrangements for further power and communication outages.
Extensive Impact and Emergency Measures
This outage appears to be affecting residences mainly in the southern region, though officials state that energy was being gradually reinstated.
Domestic outlets have stated that in certain areas homes have lost their roofs, and trees and electricity poles have been knocked down by the gusts.
In Wellington, a man was fatally injured after being hit by a falling limb at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was pushed toward approaching vehicles on a street by a intensive burst, in a moment that was recorded in a widely shared car camera footage.
Flights entering and leaving the metropolis have been suspended because of the winds, and certain highways and community centers are not operating.
Simultaneously local leaders have issued a crisis declaration, to support disaster response efforts.
Strike Action Amid Harsh Weather
These intense gusts on Thursday occur while tens of thousands of teachers, doctors and other public workers take part in what has been termed a "major walkout", requesting better pay and working conditions.
Yet the intense climate has pressured them to alter certain arrangements, with several external protests moved indoors or abandoned.
Similar gusts are impacting the neighboring country, causing a period of extreme heat to the remote areas.
Officials have issued fire bans for apprehension regarding wildfires.
