Powerful gusts attaining velocities of up to 155km/h (96mph) have left around 90,000 homes lacking electricity and compelled agencies to call off more than 100 aircraft departures, as reported by domestic outlets.
These gusts are affecting the whole South Island and southern sections of the North Island, as stated by the weather forecasting body.
The nation's agencies have released infrequent severe gust advisories - the most severe warning - in key areas such as Canterbury and Wellington.
Locals have been advised to remain inside, refrain from journeys, and make arrangements for additional utility disruptions.
Extensive Impact and Emergency Response
The power cut is primarily influencing households mainly in the South Island, though agencies report that energy was being restored progressively.
Local media have stated that in certain areas homes have lost their roofs, whereas utility poles and vegetation have been brought down by the gales.
Across Wellington, a individual was lost his life after being impacted by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a individual was swept into approaching vehicles on a street by a powerful blast, in a moment that was recorded in a popular vehicle recording.
Aircraft services entering and leaving the city have been suspended because of the winds, and various routes and public facilities are shut down.
At the same time local leaders have issued a emergency situation, to assist disaster response efforts.
Labor Protests Alongside Extreme Conditions
These intense gusts on Thursday come as tens of thousands of teachers, doctors and other public workers are engaged in what has been described as a "mega strike", requesting better pay and working conditions.
However the severe conditions has forced them to alter various scheduled activities, with several external protests moved indoors or called off.
Similar gusts are affecting the neighboring country, bringing a high-temperature event to the country's outback.
Authorities have announced fire bans for apprehension regarding bushfires.