Powerful gusts attaining velocities of approximately 155km/h (96mph) have caused around 90,000 properties lacking electricity and compelled agencies to cancel over 100 air travel services, as reported by regional news sources.
The gales are affecting the whole South Island and southern sections of the northern region, per the national weather agency.
Officials in New Zealand have issued rare severe gust advisories - the highest alert level - in central regions including Canterbury and Wellington.
Residents have been advised to avoid going outside, stay off roads, and prepare for further electricity and network failures.
Extensive Damage and Emergency Measures
The power cut is primarily influencing homes predominantly in the southern region, while agencies say that the electricity supply was being gradually reinstated.
Local media have reported that in certain areas roofs have been ripped off houses, whereas trees and electricity poles have been toppled by the gales.
Within the capital, a man was killed after being hit by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was blown onto oncoming traffic on a road by a intensive burst, in a incident that was recorded in a widely shared car camera footage.
Aircraft services to and from the city have been suspended as a result of the gusts, and some roads and libraries are shut down.
At the same time local leaders have announced a emergency situation, to assist disaster response efforts.
Work Stoppages Amid Harsh Weather
The wild winds on Thursday coincide with tens of thousands of teachers, doctors and other public workers are participating in what has been described as a "major walkout", calling for improved salaries and workplace environments.
But the extreme weather has compelled them to change some of their plans, with various open-air gatherings moved indoors or cancelled.
Like conditions are also sweeping Australia, bringing a period of extreme heat to the country's outback.
Agencies have issued burning restrictions for concern about forest fires.
