Intense winds reaching speeds of up to 155km/h (96mph) have resulted in approximately 90,000 homes lacking electricity and forced officials to call off more than 100 air travel services, as reported by regional news sources.
The gales are affecting the complete South Island and lower areas of the North Island, according to the weather forecasting body.
Officials in New Zealand have issued rare red wind warnings - the top caution category - in core zones such as these major districts.
People have been urged to remain inside, stay off roads, and make arrangements for further utility disruptions.
Widespread Destruction and Emergency Response
This outage appears to be affecting households predominantly in the South Island, although authorities report that the electricity supply was being restored progressively.
Local media have reported that in various locations homes have lost their roofs, while trees and electricity poles have been brought down by the gales.
Within the capital, a man was lost his life after being hit by a tree branch at a well-known hiking path on earlier this week.
Also in the capital, a woman was pushed toward moving cars on a street by a powerful blast, in a incident that was recorded in a popular vehicle recording.
Aircraft services to and from the city have been suspended as a result of the winds, while various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have announced a state of emergency, to assist disaster response efforts.
Labor Protests Alongside Severe Conditions
The powerful gales on today come as many of educators, medical professionals and government employees are participating in what has been termed a "significant labor action", calling for higher wages and enhanced employment terms.
However the intense climate has compelled them to modify various scheduled activities, with several external protests moved indoors or abandoned.
Similar gusts are impacting the neighboring country, causing a high-temperature event to the remote areas.
Authorities have announced burning restrictions for concern about wildfires.
