Intense gusts hitting velocities of up to 155km/h (96mph) have caused around 90,000 properties lacking electricity and forced agencies to cancel over 100 air travel services, according to domestic outlets.
The gales are influencing the whole South Island and lower areas of the northern region, per the country's meteorological service.
The nation's agencies have issued rare high-level wind alerts - the most severe warning - in key areas such as Wellington and Canterbury.
Locals have been urged to stay indoors, avoid travel, and prepare for further electricity and network failures.
Broad Damage and Crisis Response
The electricity loss is primarily influencing households mainly in the South Island, although agencies say that the electricity supply was being gradually reinstated.
Regional news have stated that in various locations roofs have been ripped off houses, whereas power lines and trees have been knocked down by the winds.
In Wellington, a man was killed after being hit by a falling limb at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was pushed toward oncoming traffic on a street by a intensive burst, in a moment that was captured in a viral dashcam video.
Aircraft services in and out of the urban area have been halted due to the weather, and various routes and public facilities are also closed.
At the same time local leaders have declared a emergency situation, to support emergency management operations.
Strike Action Amid Extreme Conditions
The powerful gales on this day occur while numerous of teachers, doctors and other public workers are participating in what has been called a "major walkout", calling for improved salaries and workplace environments.
But the severe conditions has forced them to modify some of their plans, with various open-air gatherings relocated inside or called off.
Like conditions are also sweeping the nearby nation, bringing a high-temperature event to the country's outback.
Agencies have declared fire bans for apprehension regarding forest fires.
