Intense winds reaching speeds of approximately 155km/h (96mph) have resulted in nearly 90,000 homes without power and compelled authorities to call off more than 100 aircraft departures, as reported by domestic outlets.
The gales are affecting the entire South Island and southern parts of the northern region, per the national weather agency.
Officials in New Zealand have issued uncommon severe gust advisories - the top caution category - in key areas such as Canterbury and Wellington.
Residents have been urged to avoid going outside, stay off roads, and get ready for more utility disruptions.
Extensive Damage and Crisis Measures
This outage appears to be affecting homes predominantly in the South Island, although authorities state that the electricity supply was being slowly brought back.
Domestic outlets have stated that in certain areas structures have suffered roof damage, while trees and electricity poles have been knocked down by the gales.
Across Wellington, a individual was fatally injured after being impacted by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was blown onto oncoming traffic on a street by a strong gust of wind, in a moment that was filmed in a viral dashcam video.
Aircraft services to and from the urban area have been cancelled because of the winds, whereas certain highways and community centers are also closed.
Simultaneously Canterbury officials have declared a crisis declaration, to support disaster response efforts.
Strike Action Alongside Extreme Conditions
The wild winds on Thursday come as numerous of school staff, physicians and civil servants are engaged in what has been called a "significant labor action", requesting higher wages and enhanced employment terms.
However the extreme weather has forced them to alter various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are affecting the neighboring country, bringing a high-temperature event to the nation's interior regions.
Authorities have declared flame prohibitions for apprehension regarding forest fires.
