Intense gusts attaining speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 homes lacking electricity and compelled agencies to call off in excess of 100 aircraft departures, as reported by local media.
The gales are affecting the entire southern region and southern sections of the North Island, per the national weather agency.
Officials in New Zealand have released rare high-level wind alerts - the most severe warning - in core zones including Canterbury and Wellington.
Locals have been urged to remain inside, stay off roads, and prepare for additional utility disruptions.
Extensive Destruction and Emergency Measures
This outage appears to be affecting households mostly in the southern region, though officials state that power was being restored progressively.
Domestic outlets have indicated that in certain areas structures have suffered roof damage, and trees and electricity poles have been toppled by the gusts.
In Wellington, a individual was fatally injured after being struck by a wooden fragment at a well-known hiking path on Tuesday.
Also in the capital, a woman was pushed toward moving cars on a road by a powerful blast, in a incident that was filmed in a viral dashcam video.
Aircraft services to and from the urban area have been halted due to the winds, whereas some roads and libraries are not operating.
Meanwhile local leaders have declared a state of emergency, to assist recovery activities.
Strike Action Amid Harsh Weather
These intense gusts on Thursday occur while numerous of school staff, physicians and civil servants take part in what has been described as a "significant labor action", demanding higher wages and enhanced employment terms.
Yet the intense climate has compelled them to alter certain arrangements, with several external protests shifted to interior venues or cancelled.
Comparable winds are affecting the nearby nation, ushering in a period of extreme heat to the country's outback.
Agencies have declared fire bans for fear of wildfires.