Powerful gusts hitting velocities of approximately 155km/h (96mph) have left around 90,000 homes without power and forced authorities to cancel more than 100 flights, according to regional news sources.
The winds are affecting the whole South Island and southern sections of the North Island, as stated by the weather forecasting body.
The nation's agencies have announced rare red wind warnings - the highest alert level - in core zones encompassing Canterbury and Wellington.
Residents have been advised to remain inside, stay off roads, and get ready for further power and communication outages.
Broad Damage and Crisis Response
The power cut appears to be affecting households predominantly in the southern region, although officials state that energy was being restored progressively.
Local media have indicated that in certain areas homes have lost their roofs, while utility poles and vegetation have been knocked down by the gusts.
In Wellington, a person was killed after being struck by a falling limb at a popular trail walking spot on earlier this week.
Additionally in the city, a woman was pushed toward approaching vehicles on a thoroughfare by a intensive burst, in a event that was captured in a popular vehicle recording.
Flights to and from the metropolis have been halted because of the weather, and some roads and libraries are also closed.
Meanwhile local leaders have declared a crisis declaration, to assist emergency management operations.
Work Stoppages Alongside Severe Conditions
These intense gusts on this day occur while numerous of educators, medical professionals and government employees are engaged in what has been described as a "significant labor action", calling for improved salaries and workplace environments.
However the severe conditions has pressured them to modify various scheduled activities, with various open-air gatherings shifted to interior venues or called off.
Like conditions are affecting the neighboring country, ushering in a heatwave to the nation's interior regions.
Agencies have announced burning restrictions for fear of forest fires.
