Intense gusts attaining speeds of approximately 155km/h (96mph) have caused approximately 90,000 homes experiencing outages and led officials to call off over 100 aircraft departures, as reported by local media.
The winds are influencing the entire South Island and lower areas of the northern region, according to the weather forecasting body.
The nation's agencies have announced uncommon severe gust advisories - the most severe warning - in core zones encompassing Canterbury and Wellington.
Residents have been encouraged to avoid going outside, stay off roads, and get ready for additional power and communication outages.
Widespread Destruction and Crisis Response
The power cut is primarily influencing households mostly in the South Island, while agencies say that energy was being slowly brought back.
Domestic outlets have reported that in some places roofs have been ripped off houses, whereas utility poles and vegetation have been knocked down by the gales.
Across Wellington, a person was lost his life after being hit by a tree branch at a well-known hiking path on Tuesday.
Additionally in the city, a woman was pushed toward oncoming traffic on a road by a intensive burst, in a event that was filmed in a widely shared car camera footage.
Aircraft services to and from the urban area have been suspended because of the gusts, and some roads and libraries are not operating.
Meanwhile authorities in Canterbury have announced a state of emergency, to facilitate disaster response efforts.
Work Stoppages During Extreme Conditions
These intense gusts on today coincide with many of educators, medical professionals and government employees take part in what has been termed a "significant labor action", requesting higher wages and enhanced employment terms.
Yet the severe conditions has forced them to modify various scheduled activities, with several external protests shifted to interior venues or abandoned.
Similar gusts are also sweeping the nearby nation, causing a heatwave to the nation's interior regions.
Authorities have declared fire bans for apprehension regarding wildfires.