Powerful gales hitting speeds of up to 155km/h (96mph) have left nearly 90,000 households experiencing outages and led agencies to call off more than 100 flights, according to regional news sources.
The winds are influencing the entire southern region and southern sections of the North Island, according to the country's meteorological service.
Officials in New Zealand have released infrequent red wind warnings - the top caution category - in core zones including Canterbury and Wellington.
Residents have been advised to stay indoors, stay off roads, and get ready for additional electricity and network failures.
Extensive Impact and Emergency Response
This outage is primarily influencing households predominantly in the southern region, though agencies report that power was being gradually reinstated.
Local media have reported that in various locations structures have suffered roof damage, whereas power lines and trees have been knocked down by the gales.
In Wellington, a individual was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a individual was swept into oncoming traffic on a road by a powerful blast, in a incident that was filmed in a widely shared car camera footage.
Flights entering and leaving the metropolis have been halted because of the gusts, whereas various routes and public facilities are shut down.
Simultaneously local leaders have issued a state of emergency, to support emergency management operations.
Strike Action Amid Extreme Conditions
These intense gusts on this day coincide with many of teachers, doctors and other public workers take part in what has been described as a "mega strike", requesting higher wages and enhanced employment terms.
But the intense climate has pressured them to change certain arrangements, with various open-air gatherings relocated inside or abandoned.
Comparable winds are also sweeping Australia, ushering in a period of extreme heat to the country's outback.
Authorities have declared flame prohibitions for fear of wildfires.
