Intense gusts hitting speeds of up to 155km/h (96mph) have left approximately 90,000 properties without power and led officials to cancel in excess of 100 aircraft departures, as reported by local media.
The winds are affecting the whole South Island and southern sections of the North Island, per the weather forecasting body.
The nation's agencies have released uncommon high-level wind alerts - the most severe warning - in central regions such as Wellington and Canterbury.
Locals have been urged to remain inside, refrain from journeys, and make arrangements for more electricity and network failures.
Widespread Damage and Crisis Response
The electricity loss seems to be impacting households mostly in the southern region, though agencies say that power was being restored progressively.
Local media have stated that in certain areas structures have suffered roof damage, while power lines and trees have been toppled by the gales.
In Wellington, a man was fatally injured after being impacted by a tree branch at a frequent walking route on Tuesday.
Also in the capital, 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.
Aircraft services to and from the urban area have been suspended due to the winds, whereas some roads and libraries are also closed.
At the same time authorities in Canterbury have issued a emergency situation, to assist disaster response efforts.
Labor Protests Alongside Extreme Weather
These intense gusts on this day come as numerous of teachers, doctors and other public workers take part in what has been termed a "significant labor action", calling for better pay and working conditions.
Yet the severe conditions has pressured them to change certain arrangements, with some outdoor rallies moved indoors or cancelled.
Comparable winds are impacting Australia, bringing a heatwave to the remote areas.
Agencies have announced fire bans for apprehension regarding wildfires.