Intense gusts attaining velocities of as high as 155km/h (96mph) have left around 90,000 households without power and compelled agencies to cancel in excess of 100 aircraft departures, as reported by domestic outlets.
The gales are affecting the complete South Island and southern sections of the northern region, according to the national weather agency.
New Zealand authorities have released rare severe gust advisories - the highest alert level - in central regions such as these major districts.
Residents have been urged to avoid going outside, refrain from journeys, and make arrangements for further electricity and network failures.
Widespread Impact and Crisis Measures
The electricity loss is primarily influencing homes mostly in the southern region, while officials say that the electricity supply was being restored progressively.
Local media have stated that in certain areas homes have lost their roofs, and trees and electricity poles have been brought down by the gusts.
In Wellington, a man was fatally injured after being impacted by a falling limb at a popular trail walking spot on earlier this week.
Also in the capital, a individual was pushed toward oncoming traffic on a thoroughfare by a powerful blast, in a incident that was recorded in a widely shared car camera footage.
Flights entering and leaving the city have been suspended because of the gusts, while various routes and public facilities are not operating.
At the same time Canterbury officials have issued a crisis declaration, to support emergency management operations.
Work Stoppages Alongside Extreme Weather
The wild winds on Thursday come as tens of thousands of school staff, physicians and civil servants take part in what has been called a "major walkout", requesting improved salaries and workplace environments.
But the extreme weather has forced them to alter certain arrangements, with various open-air gatherings shifted to interior venues or abandoned.
Comparable winds are also sweeping the nearby nation, bringing a heatwave to the remote areas.
Authorities have declared burning restrictions for apprehension regarding bushfires.
