Intense gusts hitting speeds of approximately 155km/h (96mph) have left around 90,000 homes experiencing outages and compelled agencies to cancel more than 100 flights, according to local media.
The gales are affecting the whole southern region and southern sections of the North Island, per the country's meteorological service.
New Zealand authorities have issued uncommon red wind warnings - the top caution category - in core zones including Wellington and Canterbury.
Locals have been urged to avoid going outside, avoid travel, and get ready for additional electricity and network failures.
Extensive Destruction and Crisis Measures
This outage is primarily influencing households mostly in the South Island, while authorities report that the electricity supply was being gradually reinstated.
Local media have stated that in certain areas structures have suffered roof damage, and power lines and trees have been brought down by the winds.
Across Wellington, a individual was fatally injured after being hit by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into moving cars on a thoroughfare by a powerful blast, in a event that was recorded in a viral dashcam video.
Aircraft services to and from the metropolis have been cancelled due to the weather, whereas various routes and public facilities are shut down.
Simultaneously local leaders have announced a emergency situation, to support disaster response efforts.
Strike Action Alongside Harsh Conditions
The wild winds on today come as tens of thousands of school staff, physicians and civil servants are engaged in what has been termed a "mega strike", calling for better pay and working conditions.
However the extreme weather has pressured them to alter various scheduled activities, with some outdoor rallies relocated inside or abandoned.
Like conditions are impacting Australia, ushering in a heatwave to the nation's interior regions.
Authorities have issued flame prohibitions for apprehension regarding wildfires.
