Severe gales attaining speeds of approximately 155km/h (96mph) have left approximately 90,000 properties without power and compelled officials to call off in excess of 100 air travel services, according to regional news sources.
The gales are affecting the whole South Island and southern parts of the North Island, according to the weather forecasting body.
Officials in New Zealand have released rare high-level wind alerts - the most severe warning - in key areas encompassing Wellington and Canterbury.
People have been encouraged to avoid going outside, refrain from journeys, and get ready for further electricity and network failures.
Extensive Damage and Emergency Response
The electricity loss appears to be affecting households mostly in the South Island, although agencies report that the electricity supply was being slowly brought back.
Regional news have stated that in certain areas structures have suffered roof damage, whereas trees and electricity poles have been toppled by the winds.
Within the capital, a individual was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was blown onto oncoming traffic on a street by a powerful blast, in a moment that was filmed in a widely shared car camera footage.
Aircraft services entering and leaving the urban area have been halted because of the gusts, while various routes and public facilities are not operating.
At the same time Canterbury officials have issued a emergency situation, to facilitate disaster response efforts.
Strike Action During Severe Weather
The wild winds on today come as tens of thousands of school staff, physicians and civil servants are participating in what has been called a "mega strike", calling for improved salaries and workplace environments.
But the intense climate has compelled them to change some of their plans, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are impacting Australia, ushering in a heatwave to the remote areas.
Authorities have announced flame prohibitions for apprehension regarding bushfires.
