Severe gusts attaining speeds of approximately 155km/h (96mph) have caused nearly 90,000 properties lacking electricity and led authorities to call off over 100 air travel services, based on domestic outlets.
The gales are impacting the complete South Island and lower areas of the northern region, per the national weather agency.
The nation's agencies have released rare red wind warnings - the top caution category - in core zones encompassing Wellington and Canterbury.
Locals have been urged to avoid going outside, refrain from journeys, and make arrangements for additional power and communication outages.
Extensive Damage and Crisis Response
The power cut is primarily influencing homes mostly in the southern region, though agencies say that the electricity supply was being slowly brought back.
Regional news have reported that in certain areas roofs have been ripped off houses, while utility poles and vegetation have been toppled by the gales.
Across Wellington, a man was fatally injured after being struck by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a street by a powerful blast, in a incident that was recorded in a widely shared car camera footage.
Aircraft services to and from the urban area have been suspended due to the weather, and various routes and public facilities are not operating.
Simultaneously authorities in Canterbury have declared a crisis declaration, to assist disaster response efforts.
Strike Action Amid Extreme Conditions
These intense gusts on this day coincide with numerous of educators, medical professionals and government employees take part in what has been called a "significant labor action", demanding better pay and working conditions.
But the severe conditions has pressured them to modify certain arrangements, with several external protests relocated inside or called off.
Comparable winds are impacting the nearby nation, causing a heatwave to the remote areas.
Authorities have declared flame prohibitions for apprehension regarding wildfires.
