Severe gusts reaching velocities of as high as 155km/h (96mph) have resulted in around 90,000 homes without power and forced officials to halt more than 100 flights, based on domestic outlets.
The winds are affecting the whole South Island and southern sections of the North Island, per the national weather agency.
Officials in New Zealand have announced rare severe gust advisories - the highest alert level - in key areas encompassing Canterbury and Wellington.
Locals have been advised to stay indoors, avoid travel, and get ready for further electricity and network failures.
Widespread Damage and Crisis Response
The electricity loss is primarily influencing households predominantly in the southern region, while officials state that energy was being restored progressively.
Local media have reported that in certain areas structures have suffered roof damage, and utility poles and vegetation have been brought down by the gales.
In Wellington, a individual was fatally injured after being struck by a falling limb at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a individual was pushed toward approaching vehicles on a road by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Air travel to and from the metropolis have been cancelled because of the gusts, while some roads and libraries are also closed.
Simultaneously local leaders have announced a emergency situation, to support recovery activities.
Work Stoppages Amid Harsh Conditions
The wild winds on Thursday occur while tens of thousands of teachers, doctors and other public workers are participating in what has been called a "mega strike", demanding improved salaries and workplace environments.
However the intense climate has compelled them to change various scheduled activities, with several external protests shifted to interior venues or abandoned.
Like conditions are affecting the neighboring country, causing a heatwave to the nation's interior regions.
Authorities have issued burning restrictions for apprehension regarding wildfires.
