Intense winds attaining speeds of as high as 155km/h (96mph) have caused around 90,000 households without power and compelled authorities to halt in excess of 100 aircraft departures, based on local media.
These gusts are affecting the entire southern region and lower areas of the northern region, according to the weather forecasting body.
Officials in New Zealand have issued uncommon high-level wind alerts - the highest alert level - in central regions such as Wellington and Canterbury.
Locals have been urged to stay indoors, avoid travel, and prepare for additional power and communication outages.
Widespread Destruction and Crisis Measures
The electricity loss seems to be impacting residences mainly in the South Island, though agencies say that the electricity supply was being gradually reinstated.
Local media have indicated that in certain areas roofs have been ripped off houses, while power lines and trees have been toppled by the gusts.
Within the capital, a person was fatally injured after being hit by a tree branch at a well-known hiking path on Tuesday.
Additionally in the city, a individual was pushed toward approaching vehicles on a road by a strong gust of wind, in a event that was captured in a popular vehicle recording.
Aircraft services in and out of the metropolis have been suspended due to the winds, while various routes and public facilities are shut down.
Simultaneously Canterbury officials have declared a emergency situation, to facilitate recovery activities.
Labor Protests Alongside Extreme Weather
The powerful gales on this day come as numerous of teachers, doctors and other public workers are participating in what has been called a "significant labor action", requesting improved salaries and workplace environments.
But the intense climate has compelled them to alter certain arrangements, with several external protests moved indoors or abandoned.
Like conditions are impacting Australia, bringing a heatwave to the remote areas.
Officials have declared flame prohibitions for apprehension regarding bushfires.