Powerful winds attaining speeds of up to 155km/h (96mph) have left nearly 90,000 properties without power and forced authorities to call off over 100 air travel services, based on local media.
These gusts are affecting the entire South Island and southern sections of the northern region, according to the country's meteorological service.
New Zealand authorities have issued rare red wind warnings - the most severe warning - in core zones encompassing Canterbury and Wellington.
People have been advised to avoid going outside, avoid travel, and prepare for further electricity and network failures.
Widespread Destruction and Emergency Measures
The electricity loss appears to be affecting homes mostly in the southern region, although officials state that power was being restored progressively.
Regional news have stated that in various locations structures have suffered roof damage, whereas power lines and trees have been knocked down by the gales.
Across Wellington, a person was killed after being hit by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was pushed toward oncoming traffic on a street by a intensive burst, in a event that was captured in a widely shared car camera footage.
Aircraft services entering and leaving the urban area have been suspended due to the weather, whereas some roads and libraries are shut down.
At the same time local leaders have declared a state of emergency, to assist disaster response efforts.
Strike Action Alongside Harsh Weather
The powerful gales on this day coincide with numerous of educators, medical professionals and government employees take part in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
But the severe conditions has forced them to modify certain arrangements, with some outdoor rallies moved indoors or abandoned.
Like conditions are affecting the nearby nation, ushering in a heatwave to the nation's interior regions.
Agencies have declared burning restrictions for fear of bushfires.