Powerful gusts hitting speeds of approximately 155km/h (96mph) have caused around 90,000 properties without power and forced agencies to halt more than 100 flights, based on local media.
These gusts are influencing the complete southern region and southern parts of the northern region, per the weather forecasting body.
Officials in New Zealand have announced uncommon severe gust advisories - the highest alert level - in key areas including Wellington and Canterbury.
People have been encouraged to stay indoors, avoid travel, and make arrangements for more utility disruptions.
Widespread Impact and Crisis Measures
The power cut is primarily influencing homes mostly in the South Island, although officials state that energy was being gradually reinstated.
Regional news have reported that in certain areas roofs have been ripped off houses, while trees and electricity poles have been knocked down by the gusts.
Across Wellington, a person was killed after being struck by a wooden fragment at a frequent walking route on earlier this week.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a street by a strong gust of wind, in a moment that was filmed in a viral dashcam video.
Flights entering and leaving the city have been halted due to the weather, while certain highways and community centers are not operating.
At the same time authorities in Canterbury have declared a emergency situation, to support disaster response efforts.
Strike Action During Harsh Weather
These intense gusts on this day coincide with many of educators, medical professionals and government employees are engaged in what has been described as a "major walkout", requesting improved salaries and workplace environments.
However the severe conditions has compelled them to alter certain arrangements, with some outdoor rallies relocated inside or abandoned.
Comparable winds are impacting the nearby nation, bringing a high-temperature event to the country's outback.
Officials have announced flame prohibitions for fear of bushfires.
