Intense gales attaining velocities of approximately 155km/h (96mph) have caused approximately 90,000 homes experiencing outages and led officials to call off in excess of 100 air travel services, based on local media.
These gusts are influencing the entire southern region and southern sections of the North Island, according to the weather forecasting body.
The nation's agencies have released rare red wind warnings - the top caution category - in key areas including Wellington and Canterbury.
Residents have been urged to stay indoors, avoid travel, and make arrangements for additional electricity and network failures.
Widespread Destruction and Emergency Response
The electricity loss appears to be affecting households predominantly in the southern region, while authorities report that energy was being slowly brought back.
Local media have reported that in some places roofs have been ripped off houses, and utility poles and vegetation have been knocked down by the gales.
Within the capital, a man was fatally injured after being struck by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was pushed toward approaching vehicles on a road by a intensive burst, in a moment that was recorded in a viral dashcam video.
Aircraft services in and out of the urban area have been halted due to the winds, and various routes and public facilities are shut down.
At the same time Canterbury officials have declared a emergency situation, to support recovery activities.
Strike Action Alongside Harsh Conditions
The wild winds on today coincide with tens of thousands of educators, medical professionals and government employees take part in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
But the extreme weather has forced them to change certain arrangements, with several external protests relocated inside or called off.
Like conditions are affecting the nearby nation, ushering in a heatwave to the country's outback.
Officials have announced flame prohibitions for apprehension regarding bushfires.