Severe gusts hitting speeds of approximately 155km/h (96mph) have left approximately 90,000 properties lacking electricity and led agencies to cancel more than 100 flights, based on local media.
The winds are influencing the whole South Island and lower areas of the northern region, according to the country's meteorological service.
Officials in New Zealand have released uncommon severe gust advisories - the highest alert level - in core zones encompassing Canterbury and Wellington.
Residents have been urged to avoid going outside, stay off roads, and make arrangements for further electricity and network failures.
Broad Damage and Emergency Measures
The power cut appears to be affecting households predominantly in the southern region, while officials report that power was being restored progressively.
Domestic outlets have reported that in some places roofs have been ripped off houses, while utility poles and vegetation have been brought down by the gales.
Within the capital, a person was lost his life after being hit by a wooden fragment at a popular trail walking spot on earlier this week.
Also in the capital, a individual was swept into oncoming traffic on a thoroughfare by a strong gust of wind, in a moment that was filmed in a viral dashcam video.
Air travel entering and leaving the urban area have been suspended as a result of the weather, whereas certain highways and community centers are shut down.
Meanwhile Canterbury officials have announced a emergency situation, to support recovery activities.
Labor Protests During Harsh Weather
The powerful gales on today come as tens of thousands of school staff, physicians and civil servants take part in what has been described as a "significant labor action", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to change various scheduled activities, with some outdoor rallies shifted to interior venues or abandoned.
Comparable winds are also sweeping Australia, ushering in a period of extreme heat to the nation's interior regions.
Officials have issued fire bans for fear of bushfires.
