Intense winds attaining velocities of up to 155km/h (96mph) have resulted in around 90,000 properties without power and compelled agencies to cancel in excess of 100 aircraft departures, as reported by local media.
The winds are affecting the whole southern region and lower areas of the North Island, as stated by the country's meteorological service.
Officials in New Zealand have announced infrequent high-level wind alerts - the highest alert level - in key areas including Wellington and Canterbury.
Residents have been encouraged to stay indoors, refrain from journeys, and get ready for additional electricity and network failures.
Extensive Damage and Emergency Measures
The power cut is primarily influencing homes mostly in the southern region, while agencies report that power was being restored progressively.
Regional news have indicated that in various locations structures have suffered roof damage, and power lines and trees have been toppled by the gusts.
In Wellington, a man was killed after being hit by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a woman was blown onto oncoming traffic on a thoroughfare by a strong gust of wind, in a incident that was captured in a widely shared car camera footage.
Flights to and from the city have been cancelled because of the gusts, while various routes and public facilities are also closed.
Simultaneously Canterbury officials have announced a emergency situation, to support disaster response efforts.
Strike Action Alongside Severe Weather
The powerful gales on Thursday occur while numerous of teachers, doctors and other public workers take part in what has been termed a "major walkout", calling for improved salaries and workplace environments.
But the severe conditions has forced them to alter some of their plans, with some outdoor rallies moved indoors or abandoned.
Like conditions are also sweeping the nearby nation, ushering in a heatwave to the country's outback.
Agencies have declared fire bans for fear of wildfires.
