Severe gales hitting speeds of as high as 155km/h (96mph) have resulted in nearly 90,000 homes experiencing outages and led agencies to cancel over 100 flights, based on regional news sources.
The gales are affecting the entire South Island and southern parts of the North Island, as stated by the national weather agency.
Officials in New Zealand have issued infrequent severe gust advisories - the highest alert level - in key areas including Wellington and Canterbury.
People have been encouraged to stay indoors, avoid travel, and prepare for additional electricity and network failures.
Widespread Destruction and Crisis Measures
The power cut appears to be affecting households predominantly in the southern region, while officials report that energy was being gradually reinstated.
Regional news have stated that in certain areas structures have suffered roof damage, and trees and electricity poles have been toppled by the gales.
Across Wellington, a person was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a individual was swept into moving cars on a street by a strong gust of wind, in a moment that was captured in a popular vehicle recording.
Flights in and out of the urban area have been suspended because of the weather, while certain highways and community centers are also closed.
At the same time authorities in Canterbury have issued a crisis declaration, to support disaster response efforts.
Work Stoppages During Harsh Conditions
These intense gusts on this day come as many of educators, medical professionals and government employees are participating in what has been described as a "significant labor action", calling for higher wages and enhanced employment terms.
But the extreme weather has compelled them to alter certain arrangements, with various open-air gatherings shifted to interior venues or cancelled.
Comparable winds are affecting Australia, ushering in a heatwave to the country's outback.
Authorities have announced fire bans for fear of bushfires.
