Severe gusts reaching speeds of approximately 155km/h (96mph) have caused around 90,000 homes lacking electricity and compelled officials to cancel in excess of 100 aircraft departures, based on regional news sources.
The winds are affecting the entire South Island and southern parts of the northern region, according to the country's meteorological service.
Officials in New Zealand have announced rare red wind warnings - the most severe warning - in central regions such as these major districts.
People have been urged to avoid going outside, stay off roads, and prepare for further utility disruptions.
Extensive Impact and Emergency Response
The power cut appears to be affecting households predominantly in the southern region, though agencies say that energy was being gradually reinstated.
Regional news have indicated that in certain areas structures have suffered roof damage, while trees and electricity poles have been brought down by the winds.
In Wellington, a individual was fatally injured after being struck by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a female was blown onto moving cars on a thoroughfare by a strong gust of wind, in a incident that was filmed in a popular vehicle recording.
Air travel in and out of the metropolis have been halted as a result of the gusts, whereas some roads and libraries are also closed.
Meanwhile local leaders have announced a state of emergency, to support recovery activities.
Work Stoppages Amid Extreme Weather
The powerful gales on this day come as tens of thousands of teachers, doctors and other public workers take part in what has been called a "significant labor action", requesting improved salaries and workplace environments.
But the severe conditions has compelled them to change some of their plans, with various open-air gatherings shifted to interior venues or called off.
Like conditions are also sweeping the neighboring country, causing a period of extreme heat to the remote areas.
Agencies have announced flame prohibitions for concern about bushfires.