Severe gusts attaining speeds of up to 155km/h (96mph) have caused nearly 90,000 properties lacking electricity and compelled officials to cancel in excess of 100 air travel services, as reported by local media.
The winds are influencing the whole South Island and southern parts of the northern region, according to the country's meteorological service.
Officials in New Zealand have announced infrequent high-level wind alerts - the most severe warning - in key areas including Wellington and Canterbury.
Residents have been urged to avoid going outside, stay off roads, and prepare for further electricity and network failures.
Broad Destruction and Emergency Measures
The power cut appears to be affecting homes mostly in the South Island, while authorities say that energy was being restored progressively.
Local media have indicated that in various locations structures have suffered roof damage, while utility poles and vegetation have been brought down by the winds.
Across Wellington, a man was killed after being impacted by a tree branch at a frequent walking route on earlier this week.
Meanwhile in Wellington, a woman was pushed toward approaching vehicles on a thoroughfare by a powerful blast, in a event that was captured in a widely shared car camera footage.
Flights entering and leaving the urban area have been halted due to the winds, and certain highways and community centers are also closed.
At the same time authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Labor Protests Alongside Severe Conditions
The powerful gales on today coincide with numerous of educators, medical professionals and government employees are participating in what has been termed a "mega strike", demanding higher wages and enhanced employment terms.
Yet the intense climate has forced them to modify various scheduled activities, with several external protests moved indoors or called off.
Like conditions are impacting Australia, bringing a high-temperature event to the remote areas.
Officials have announced burning restrictions for fear of forest fires.