Intense gusts hitting speeds of approximately 155km/h (96mph) have caused nearly 90,000 households experiencing outages and compelled agencies to halt over 100 air travel services, according to local media.
The gales are impacting the complete South Island and southern sections of the North Island, as stated by the country's meteorological service.
The nation's agencies have issued rare red wind warnings - the highest alert level - in core zones including Canterbury and Wellington.
Residents have been urged to avoid going outside, refrain from journeys, and make arrangements for additional utility disruptions.
Widespread Destruction and Emergency Response
This outage is primarily influencing homes mainly in the South Island, although agencies report that the electricity supply was being gradually reinstated.
Regional news have indicated that in certain areas structures have suffered roof damage, while utility poles and vegetation have been knocked down by the gales.
In Wellington, a man was lost his life after being hit by a wooden fragment at a well-known hiking path on earlier this week.
Meanwhile in Wellington, a individual was pushed toward moving cars on a street by a powerful blast, in a moment that was filmed in a widely shared car camera footage.
Aircraft services to and from the city have been halted as a result of the gusts, while certain highways and community centers are shut down.
At the same time authorities in Canterbury have issued a state of emergency, to support disaster response efforts.
Work Stoppages During Harsh Conditions
These intense gusts on this day coincide with many of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", requesting higher wages and enhanced employment terms.
However the severe conditions has compelled them to change various scheduled activities, with several external protests relocated inside or cancelled.
Similar gusts are impacting Australia, bringing a heatwave to the country's outback.
Officials have announced fire bans for fear of bushfires.