Severe gales attaining velocities of as high as 155km/h (96mph) have caused nearly 90,000 households lacking electricity and compelled authorities to call off more than 100 flights, based on local media.
The winds are affecting the whole southern region and southern sections of the North Island, according to the national weather agency.
New Zealand authorities have issued uncommon high-level wind alerts - the most severe warning - in central regions including Wellington and Canterbury.
People have been advised to remain inside, stay off roads, and get ready for more electricity and network failures.
Widespread Destruction and Crisis Response
The power cut seems to be impacting homes mostly in the South Island, while officials report that the electricity supply was being slowly brought back.
Regional news have reported that in certain areas homes have lost their roofs, and trees and electricity poles have been brought down by the gusts.
Across Wellington, a man was fatally injured after being struck by a falling limb at a well-known hiking path on Tuesday.
Also in the capital, a female was blown onto moving cars on a street by a powerful blast, in a moment that was filmed in a popular vehicle recording.
Flights in and out of the metropolis have been suspended as a result of the winds, and certain highways and community centers are shut down.
Simultaneously Canterbury officials have issued a state of emergency, to assist recovery activities.
Strike Action Amid Harsh Conditions
The wild winds on this day occur while many of teachers, doctors and other public workers take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
But the extreme weather has forced them to change certain arrangements, with some outdoor rallies moved indoors or cancelled.
Similar gusts are impacting the neighboring country, bringing a heatwave to the remote areas.
Authorities have issued flame prohibitions for apprehension regarding wildfires.
