Powerful gales hitting speeds of as high as 155km/h (96mph) have resulted in nearly 90,000 households experiencing outages and compelled authorities to cancel over 100 air travel services, according to regional news sources.
The winds are impacting the whole southern region and southern sections of the North Island, according to the weather forecasting body.
Officials in New Zealand have issued infrequent severe gust advisories - the highest alert level - in key areas including Canterbury and Wellington.
Locals have been advised to stay indoors, refrain from journeys, and prepare for more power and communication outages.
Broad Impact and Emergency Measures
This outage seems to be impacting households predominantly in the South Island, though agencies state that energy was being restored progressively.
Domestic outlets have reported that in certain areas structures have suffered roof damage, and trees and electricity poles have been toppled by the winds.
Within the capital, a person was killed after being hit by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a woman was pushed toward moving cars on a road by a powerful blast, in a moment that was recorded in a widely shared car camera footage.
Flights entering and leaving the city have been suspended as a result of the gusts, and various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have announced a state of emergency, to support disaster response efforts.
Strike Action Alongside Extreme Weather
The powerful gales on today coincide with many of teachers, doctors and other public workers are engaged in what has been described as a "significant labor action", demanding better pay and working conditions.
Yet the severe conditions has compelled them to change some of their plans, with various open-air gatherings shifted to interior venues or called off.
Similar gusts are also sweeping Australia, bringing a period of extreme heat to the remote areas.
Officials have announced flame prohibitions for fear of forest fires.
