Severe gusts hitting velocities of approximately 155km/h (96mph) have left around 90,000 households without power and forced authorities to call off over 100 flights, based on domestic outlets.
The gales are influencing the whole southern region and lower areas of the North Island, as stated by the national weather agency.
Officials in New Zealand have released infrequent high-level wind alerts - the most severe warning - in key areas encompassing Wellington and Canterbury.
People have been advised to remain inside, refrain from journeys, and get ready for more utility disruptions.
Extensive Damage and Emergency Response
This outage appears to be affecting homes mostly in the South Island, while authorities report that energy was being gradually reinstated.
Domestic outlets have stated that in various locations homes have lost their roofs, while power lines and trees have been knocked down by the winds.
In Wellington, a individual was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto approaching vehicles on a road by a powerful blast, in a event that was filmed in a widely shared car camera footage.
Flights in and out of the metropolis have been cancelled as a result of the gusts, and certain highways and community centers are shut down.
Simultaneously local leaders have issued a crisis declaration, to facilitate recovery activities.
Labor Protests Alongside Harsh Weather
The wild winds on Thursday come as many of educators, medical professionals and government employees take part in what has been described as a "mega strike", calling for higher wages and enhanced employment terms.
However the intense climate has forced them to alter various scheduled activities, with various open-air gatherings relocated inside or called off.
Similar gusts are affecting Australia, causing a high-temperature event to the country's outback.
Authorities have announced burning restrictions for concern about forest fires.