Intense gusts hitting velocities of as high as 155km/h (96mph) have resulted in approximately 90,000 households without power and led officials to cancel more than 100 aircraft departures, based on local media.
These gusts are influencing the complete South Island and southern parts of the northern region, according to the national weather agency.
Officials in New Zealand have released rare red wind warnings - the most severe warning - in key areas encompassing these major districts.
Residents have been encouraged to remain inside, stay off roads, and prepare for further electricity and network failures.
Widespread Impact and Emergency Response
The power cut appears to be affecting households mostly in the southern region, while agencies state that power was being gradually reinstated.
Local media have reported that in various locations structures have suffered roof damage, whereas power lines and trees have been brought down by the gusts.
Across Wellington, a individual was killed after being struck by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was blown onto approaching vehicles on a thoroughfare by a strong gust of wind, in a incident that was recorded in a popular vehicle recording.
Air travel in and out of the city have been halted due to the weather, while certain highways and community centers are shut down.
Simultaneously Canterbury officials have declared a state of emergency, to support recovery activities.
Strike Action Alongside Harsh Weather
The powerful gales on Thursday occur while tens of thousands of educators, medical professionals and government employees are participating in what has been called a "major walkout", requesting higher wages and enhanced employment terms.
Yet the severe conditions has forced them to modify various scheduled activities, with some outdoor rallies shifted to interior venues or abandoned.
Similar gusts are impacting Australia, bringing a heatwave to the nation's interior regions.
Agencies have issued flame prohibitions for concern about wildfires.
