Powerful gusts reaching speeds of up to 155km/h (96mph) have caused approximately 90,000 households without power and led officials to cancel over 100 aircraft departures, according to local media.
The gales are influencing the entire southern region and southern parts of the northern region, according to the weather forecasting body.
Officials in New Zealand have released uncommon high-level wind alerts - the highest alert level - in core zones such as Wellington and Canterbury.
Residents have been encouraged to avoid going outside, refrain from journeys, and make arrangements for additional power and communication outages.
Extensive Impact and Crisis Measures
The power cut is primarily influencing residences mainly in the southern region, while authorities say that power was being gradually reinstated.
Local media have indicated that in various locations structures have suffered roof damage, whereas 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 well-known hiking path on earlier this week.
Meanwhile in Wellington, a woman was swept into moving cars on a road by a powerful blast, in a incident that was filmed in a widely shared car camera footage.
Aircraft services to and from the metropolis have been halted because of the gusts, and various routes and public facilities are not operating.
Simultaneously authorities in Canterbury have issued a crisis declaration, to support recovery activities.
Labor Protests Alongside Harsh Weather
These intense gusts on today occur while numerous of school staff, physicians and civil servants are engaged in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
But the severe conditions has forced them to alter some of their plans, with various open-air gatherings moved indoors or called off.
Like conditions are also sweeping Australia, ushering in a period of extreme heat to the country's outback.
Officials have issued fire bans for fear of bushfires.
