Intense gales attaining speeds of up to 155km/h (96mph) have resulted in nearly 90,000 homes experiencing outages and compelled officials to call off in excess of 100 air travel services, based on local media.
The winds are affecting the whole South Island and lower areas of the North Island, according to the country's meteorological service.
The nation's agencies have issued uncommon high-level wind alerts - the top caution category - in central regions encompassing these major districts.
People have been advised to avoid going outside, refrain from journeys, and prepare for more utility disruptions.
Extensive Damage and Crisis Response
This outage appears to be affecting homes predominantly in the southern region, while agencies state that the electricity supply was being restored progressively.
Local media have reported that in various locations roofs have been ripped off houses, and trees and electricity poles have been brought down by the winds.
Across Wellington, a person was killed after being struck by a wooden fragment at a well-known hiking path on Tuesday.
Also in the capital, a female was swept into oncoming traffic on a thoroughfare by a intensive burst, in a event that was filmed in a popular vehicle recording.
Air travel entering and leaving the city have been suspended due to the winds, and certain highways and community centers are shut down.
Meanwhile Canterbury officials have announced a emergency situation, to assist disaster response efforts.
Work Stoppages During Harsh Weather
These intense gusts on this day coincide with numerous of educators, medical professionals and government employees are engaged in what has been termed a "major walkout", calling for higher wages and enhanced employment terms.
However the severe conditions has pressured them to modify various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are also sweeping the neighboring country, bringing a heatwave to the nation's interior regions.
Agencies have declared flame prohibitions for fear of wildfires.