Severe winds attaining velocities of approximately 155km/h (96mph) have left nearly 90,000 households experiencing outages and compelled authorities to halt more than 100 flights, according to local media.
These gusts are affecting the complete South Island and lower areas of the northern region, per the national weather agency.
The nation's agencies have released rare severe gust advisories - the most severe warning - in core zones encompassing Wellington and Canterbury.
Residents have been urged to avoid going outside, refrain from journeys, and prepare for additional power and communication outages.
Widespread Destruction and Crisis Response
The electricity loss appears to be affecting residences mainly in the southern region, though authorities report that power was being gradually reinstated.
Regional news have stated that in some places structures have suffered roof damage, while power lines and trees have been knocked down by the gales.
Across Wellington, a person was killed after being hit by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a woman was swept into oncoming traffic on a thoroughfare by a strong gust of wind, in a event that was recorded in a viral dashcam video.
Air travel in and out of the city have been cancelled because of the weather, and certain highways and community centers are not operating.
Simultaneously local leaders have issued a crisis declaration, to support recovery activities.
Labor Protests During Harsh Conditions
The wild winds on today occur while numerous of teachers, doctors and other public workers are participating in what has been described as a "major walkout", demanding better pay and working conditions.
But the intense climate has compelled them to change various scheduled activities, with some outdoor rallies shifted to interior venues or abandoned.
Similar gusts are impacting the neighboring country, bringing a high-temperature event to the country's outback.
Officials have declared fire bans for fear of wildfires.
