Powerful gusts hitting velocities of approximately 155km/h (96mph) have resulted in around 90,000 households without power and forced authorities to halt more than 100 air travel services, based on local media.
The winds are influencing the complete South Island and southern parts of the northern region, according to the country's meteorological service.
The nation's agencies have issued infrequent severe gust advisories - the most severe warning - in central regions including Canterbury and Wellington.
Locals have been urged to stay indoors, stay off roads, and make arrangements for more electricity and network failures.
The electricity loss seems to be impacting residences mainly in the southern region, although agencies report that power was being restored progressively.
Domestic outlets have reported that in certain areas homes have lost their roofs, while trees and electricity poles have been toppled by the gusts.
Within the capital, a individual was fatally injured after being impacted by a falling limb at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a individual was pushed toward oncoming traffic on a road by a strong gust of wind, in a moment that was recorded in a viral dashcam video.
Aircraft services to and from the urban area have been cancelled as a result of the gusts, whereas some roads and libraries are shut down.
At the same time Canterbury officials have announced a crisis declaration, to assist emergency management operations.
The wild winds on this day occur while tens of thousands 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.
But the severe conditions has compelled them to modify certain arrangements, with various open-air gatherings moved indoors or abandoned.
Comparable winds are also sweeping Australia, bringing a high-temperature event to the remote areas.
Agencies have issued fire bans for apprehension regarding bushfires.
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