Intense winds reaching velocities of approximately 155km/h (96mph) have resulted in around 90,000 properties experiencing outages and compelled officials to cancel in excess of 100 flights, based on local media.
The gales are affecting the whole South Island and lower areas of the North Island, per the weather forecasting body.
Officials in New Zealand have released uncommon severe gust advisories - the top caution category - in core zones encompassing Wellington and Canterbury.
Residents have been encouraged to stay indoors, avoid travel, and get ready for additional utility disruptions.
Widespread Impact and Emergency Measures
The electricity loss seems to be impacting homes mostly in the South Island, though authorities state that power was being gradually reinstated.
Domestic outlets have stated that in some places homes have lost their roofs, whereas utility poles and vegetation have been knocked down by the gusts.
Across Wellington, a individual was fatally injured after being struck by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto oncoming traffic on a street by a powerful blast, in a event that was captured in a viral dashcam video.
Flights to and from the city have been suspended because of the weather, while certain highways and community centers are also closed.
At the same time authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Strike Action Amid Severe Conditions
The powerful gales on this day occur while tens of thousands 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 intense climate has forced them to change some of their plans, with some outdoor rallies moved indoors or abandoned.
Like conditions are also sweeping the nearby nation, bringing a high-temperature event to the remote areas.
Agencies have issued fire bans for concern about bushfires.
