Severe gales attaining speeds of as high as 155km/h (96mph) have left around 90,000 homes experiencing outages and forced officials to cancel in excess of 100 flights, as reported by local media.
The winds are impacting the whole southern region and southern sections of the North Island, according to the country's meteorological service.
Officials in New Zealand have issued rare high-level wind alerts - the most severe warning - in core zones such as Canterbury and Wellington.
Locals have been urged to avoid going outside, refrain from journeys, and get ready for additional utility disruptions.
Extensive Damage and Crisis Response
The power cut is primarily influencing households mainly in the southern region, though agencies say that energy was being slowly brought back.
Local media have reported that in some places homes have lost their roofs, whereas power lines and trees have been brought down by the winds.
In Wellington, a man was killed after being hit by a tree branch at a frequent walking route on earlier this week.
Meanwhile in Wellington, a individual was swept into approaching vehicles on a thoroughfare by a powerful blast, in a moment that was recorded in a widely shared car camera footage.
Aircraft services to and from the metropolis have been suspended as a result of the weather, while certain highways and community centers are shut down.
At the same time Canterbury officials have issued a crisis declaration, to assist emergency management operations.
Work Stoppages Alongside Harsh Conditions
The powerful gales on today come as numerous of teachers, doctors and other public workers take part in what has been described as a "mega strike", calling for better pay and working conditions.
But the intense climate has forced them to change certain arrangements, with some outdoor rallies moved indoors or cancelled.
Similar gusts are also sweeping the nearby nation, bringing a heatwave to the nation's interior regions.
Authorities have announced flame prohibitions for apprehension regarding bushfires.