Intense winds hitting velocities of as high as 155km/h (96mph) have left approximately 90,000 households experiencing outages and led officials to halt more than 100 flights, based on local media.
The winds are influencing the whole South Island and lower areas of the northern region, per the weather forecasting body.
The nation's agencies have issued infrequent high-level wind alerts - the highest alert level - in key areas including Canterbury and Wellington.
Locals have been urged to avoid going outside, refrain from journeys, and prepare for additional utility disruptions.
Broad Impact and Crisis Response
The power cut appears to be affecting residences predominantly in the South Island, though agencies report that power was being gradually reinstated.
Domestic outlets have reported that in certain areas structures have suffered roof damage, whereas power lines and trees have been toppled by the gales.
In Wellington, a person was killed after being struck by a falling limb at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was pushed toward moving cars on a road by a strong gust of wind, in a event that was filmed in a widely shared car camera footage.
Air travel entering and leaving the urban area have been halted because of the winds, whereas various routes and public facilities are not operating.
At the same time Canterbury officials have issued a crisis declaration, to assist recovery activities.
Labor Protests Alongside Extreme Conditions
These intense gusts on today come as numerous of teachers, doctors and other public workers take part in what has been termed a "major walkout", requesting improved salaries and workplace environments.
However the severe conditions has forced them to change some of their plans, with several external protests moved indoors or cancelled.
Like conditions are affecting the neighboring country, bringing a heatwave to the country's outback.
Officials have announced fire bans for fear of bushfires.
