Powerful gusts hitting speeds of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and led authorities to call off over 100 air travel services, based on local media.
The gales are affecting the whole South Island and lower areas of the North Island, per the country's meteorological service.
Officials in New Zealand have announced infrequent red wind warnings - the most severe warning - in central regions encompassing Canterbury and Wellington.
Residents have been urged to remain inside, stay off roads, and make arrangements for additional electricity and network failures.
Extensive Destruction and Emergency Response
This outage is primarily influencing residences mostly in the southern region, though authorities report that power was being restored progressively.
Local media have reported that in various locations structures have suffered roof damage, and trees and electricity poles have been toppled by the winds.
Within the capital, a man was fatally injured after being struck by a tree branch at a frequent walking route on earlier this week.
Additionally in the city, a female was pushed toward moving cars on a street by a powerful blast, in a moment that was recorded in a popular vehicle recording.
Flights to and from the city have been cancelled due to the winds, and certain highways and community centers are also closed.
At the same time local leaders have issued a crisis declaration, to facilitate emergency management operations.
Work Stoppages During Harsh Conditions
The wild winds on Thursday come as numerous of educators, medical professionals and government employees take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
Yet the severe conditions has forced them to modify some of their plans, with some outdoor rallies relocated inside or abandoned.
Like conditions are also sweeping the neighboring country, ushering in a high-temperature event to the remote areas.
Agencies have issued fire bans for fear of wildfires.
