Severe gusts hitting velocities of up to 155km/h (96mph) have left around 90,000 properties without power and forced authorities to halt over 100 air travel services, based on domestic outlets.
The winds are impacting the entire southern region and southern sections of the northern region, as stated by the national weather agency.
Officials in New Zealand have released infrequent red wind warnings - the most severe warning - in core zones including Canterbury and Wellington.
People have been encouraged to remain inside, refrain from journeys, and make arrangements for further electricity and network failures.
Widespread Damage and Crisis Measures
The electricity loss is primarily influencing residences mostly in the South Island, though agencies say that power was being gradually reinstated.
Local media have stated that in various locations homes have lost their roofs, and trees and electricity poles have been brought down by the gales.
In Wellington, a individual was lost his life after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a individual was pushed toward oncoming traffic on a road by a powerful blast, in a incident that was captured in a widely shared car camera footage.
Air travel to and from the urban area have been halted due to the gusts, whereas certain highways and community centers are not operating.
Simultaneously authorities in Canterbury have announced a state of emergency, to support emergency management operations.
Strike Action Amid Harsh Weather
The powerful gales on today come as numerous of school staff, physicians and civil servants take part in what has been termed a "major walkout", demanding better pay and working conditions.
Yet the extreme weather has forced them to change certain arrangements, with several external protests relocated inside or called off.
Similar gusts are also sweeping the neighboring country, bringing a period of extreme heat to the remote areas.
Agencies have announced burning restrictions for concern about wildfires.