Intense gales reaching velocities of as high as 155km/h (96mph) have resulted in approximately 90,000 properties without power and led officials to call off more than 100 flights, according to regional news sources.
These gusts are influencing the whole southern region and southern sections of the northern region, per the weather forecasting body.
Officials in New Zealand have released infrequent red wind warnings - the top caution category - in key areas such as these major districts.
People have been urged to remain inside, stay off roads, and prepare for more utility disruptions.
Broad Destruction and Crisis Response
The power cut seems to be impacting residences mainly in the southern region, though authorities say that the electricity supply was being gradually reinstated.
Regional news have indicated that in various locations structures have suffered roof damage, and trees and electricity poles have been knocked down by the gales.
Across Wellington, a man was killed after being impacted by a falling limb at a frequent walking route on Tuesday.
Also in the capital, a individual was blown onto approaching vehicles on a road by a strong gust of wind, in a incident that was captured in a viral dashcam video.
Aircraft services entering and leaving the city have been halted due to the winds, and certain highways and community centers are shut down.
Simultaneously Canterbury officials have declared a emergency situation, to assist emergency management operations.
Strike Action Amid Severe Weather
These intense gusts on today come as many of educators, medical professionals and government employees are engaged in what has been described as a "major walkout", calling for higher wages and enhanced employment terms.
But the intense climate has pressured them to change some of their plans, with various open-air gatherings shifted to interior venues or abandoned.
Comparable winds are also sweeping the nearby nation, causing a heatwave to the nation's interior regions.
Officials have announced burning restrictions for concern about forest fires.