Powerful gusts attaining velocities of up to 155km/h (96mph) have left nearly 90,000 homes experiencing outages and led authorities to call off more than 100 aircraft departures, according to regional news sources.
The winds are impacting the whole southern region and southern sections of the northern region, according to the national weather agency.
Officials in New Zealand have issued rare severe gust advisories - the most severe warning - in key areas such as Canterbury and Wellington.
Locals have been advised to stay indoors, refrain from journeys, and prepare for further utility disruptions.
Widespread Impact and Crisis Response
The power cut is primarily influencing households mainly in the South Island, though agencies say that energy was being gradually reinstated.
Domestic outlets have stated that in some places homes have lost their roofs, and power lines and trees have been brought down by the gales.
Across Wellington, a person was lost his life after being hit by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a thoroughfare by a strong gust of wind, in a incident that was captured in a popular vehicle recording.
Flights in and out of the city have been suspended due to the winds, and various routes and public facilities are shut down.
At the same time Canterbury officials have issued a state of emergency, to assist disaster response efforts.
Strike Action Alongside Extreme Conditions
The powerful gales on this day come as numerous of school staff, physicians and civil servants are engaged in what has been termed a "significant labor action", requesting better pay and working conditions.
Yet the intense climate has pressured them to change various scheduled activities, with some outdoor rallies relocated inside or cancelled.
Comparable winds are also sweeping the neighboring country, ushering in a heatwave to the remote areas.
Authorities have announced flame prohibitions for apprehension regarding wildfires.