Severe gusts hitting speeds of up to 155km/h (96mph) have left around 90,000 homes lacking electricity and forced authorities to halt over 100 flights, as reported by regional news sources.
The gales are impacting the whole southern region and southern sections of the northern region, according to the weather forecasting body.
New Zealand authorities have issued infrequent red wind warnings - the most severe warning - in core zones including Canterbury and Wellington.
Residents have been advised to stay indoors, stay off roads, and prepare for more utility disruptions.
Widespread Destruction and Crisis Measures
This outage is primarily influencing homes mostly in the South Island, while officials say that the electricity supply was being restored progressively.
Regional news have reported that in various locations homes have lost their roofs, while trees and electricity poles have been brought down by the gales.
Across Wellington, a individual was lost his life after being impacted by a tree branch at a frequent walking route on Tuesday.
Additionally in the city, a female was blown onto approaching vehicles on a thoroughfare by a intensive burst, in a event that was captured in a popular vehicle recording.
Air travel in and out of the urban area have been cancelled due to the winds, whereas various routes and public facilities are also closed.
Meanwhile Canterbury officials have announced a crisis declaration, to facilitate disaster response efforts.
Strike Action Alongside Extreme Weather
These intense gusts on Thursday coincide with many of school staff, physicians and civil servants are engaged in what has been termed a "major walkout", calling for improved salaries and workplace environments.
Yet the extreme weather has forced them to modify various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are affecting the neighboring country, bringing a high-temperature event to the remote areas.
Agencies have announced burning restrictions for apprehension regarding forest fires.
