Powerful gales attaining velocities of as high as 155km/h (96mph) have caused around 90,000 properties lacking electricity and compelled authorities to cancel over 100 aircraft departures, as reported by domestic outlets.
The winds are influencing the entire southern region and southern parts of the North Island, according to the national weather agency.
New Zealand authorities have issued rare severe gust advisories - the top caution category - in key areas including Canterbury and Wellington.
People have been urged to stay indoors, refrain from journeys, and prepare for additional utility disruptions.
Broad Impact and Emergency Response
The electricity loss is primarily influencing residences mostly in the South Island, although officials say that power was being slowly brought back.
Local media have reported that in some places roofs have been ripped off houses, whereas trees and electricity poles have been toppled by the gales.
Across Wellington, a man was killed after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a woman was pushed toward approaching vehicles on a street by a powerful blast, in a moment that was captured in a popular vehicle recording.
Flights to and from the city have been halted due to the weather, while various routes and public facilities are shut down.
Meanwhile local leaders have issued a emergency situation, to facilitate disaster response efforts.
Work Stoppages During Harsh Conditions
These intense gusts on this day coincide with numerous of educators, medical professionals and government employees are engaged in what has been called a "significant labor action", requesting higher wages and enhanced employment terms.
But the severe conditions has pressured them to change certain arrangements, with several external protests moved indoors or called off.
Like conditions are also sweeping Australia, ushering in a heatwave to the remote areas.
Agencies have announced fire bans for concern about wildfires.
