Intense winds reaching speeds of as high as 155km/h (96mph) have caused approximately 90,000 properties experiencing outages and led agencies to halt more than 100 air travel services, as reported by domestic outlets.
The gales are influencing the entire southern region and southern sections of the northern region, per the country's meteorological service.
New Zealand authorities have issued uncommon red wind warnings - the highest alert level - in key areas including these major districts.
Residents have been urged to remain inside, refrain from journeys, and get ready for additional utility disruptions.
The power cut appears to be affecting residences mainly in the South Island, although agencies state that energy was being restored progressively.
Local media have stated that in various locations homes have lost their roofs, and utility poles and vegetation have been brought down by the gusts.
In Wellington, a person was lost his life after being hit by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a thoroughfare by a powerful blast, in a event that was captured in a widely shared car camera footage.
Air travel entering and leaving the urban area have been halted as a result of the gusts, while some roads and libraries are shut down.
Simultaneously local leaders have issued a crisis declaration, to facilitate emergency management operations.
The powerful gales on today come as numerous of teachers, doctors and other public workers are engaged in what has been called a "significant labor action", requesting better pay and working conditions.
But the severe conditions has forced them to change some of their plans, with several external protests relocated inside or abandoned.
Comparable winds are affecting the neighboring country, bringing a period of extreme heat to the remote areas.
Authorities have issued fire bans for apprehension regarding bushfires.