Severe gusts attaining velocities of up to 155km/h (96mph) have left around 90,000 households lacking electricity and led authorities to halt more than 100 flights, according to regional news sources.
The gales are influencing the complete South Island and lower areas of the North Island, per the country's meteorological service.
Officials in New Zealand have announced infrequent severe gust advisories - the top caution category - in key areas such as Canterbury and Wellington.
Residents have been advised to remain inside, refrain from journeys, and prepare for more electricity and network failures.
Widespread Destruction and Crisis Measures
The power cut appears to be affecting homes mostly in the southern region, although officials report that the electricity supply was being slowly brought back.
Domestic outlets have stated that in some places homes have lost their roofs, and utility poles and vegetation have been knocked down by the gusts.
Across Wellington, a individual was killed after being hit by a wooden fragment at a popular trail walking spot on earlier this week.
Additionally in the city, a female was pushed toward moving cars on a thoroughfare by a strong gust of wind, in a event that was captured in a widely shared car camera footage.
Air travel to and from the city have been suspended because of the winds, whereas various routes and public facilities are not operating.
Meanwhile authorities in Canterbury have declared a crisis declaration, to assist emergency management operations.
Labor Protests Alongside Severe Conditions
The wild winds on today coincide with many of school staff, physicians and civil servants are participating in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
But the severe conditions has forced them to modify some of their plans, with various open-air gatherings shifted to interior venues or cancelled.
Like conditions are impacting the nearby nation, ushering in a high-temperature event to the remote areas.
Officials have announced flame prohibitions for fear of bushfires.