Intense gales attaining velocities of up to 155km/h (96mph) have resulted in around 90,000 households lacking electricity and led agencies to halt in excess of 100 flights, based on domestic outlets.
These gusts are influencing the complete South Island and southern parts of the North Island, per the weather forecasting body.
The nation's agencies have released infrequent high-level wind alerts - the highest alert level - in central regions including Wellington and Canterbury.
People have been advised to remain inside, refrain from journeys, and make arrangements for more utility disruptions.
Widespread Impact and Emergency Response
The electricity loss appears to be affecting households mostly in the southern region, though agencies state that power was being restored progressively.
Regional news have stated that in some places homes have lost their roofs, and utility poles and vegetation have been toppled by the gales.
In Wellington, a person was lost his life after being struck by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a female was blown onto oncoming traffic on a road by a powerful blast, in a incident that was captured in a widely shared car camera footage.
Air travel in and out of the urban area have been cancelled due to the winds, while certain highways and community centers are not operating.
Simultaneously local leaders have announced a emergency situation, to assist emergency management operations.
Labor Protests During Extreme Weather
The powerful gales on this day coincide with numerous of educators, medical professionals and government employees take part in what has been described as a "mega strike", demanding improved salaries and workplace environments.
However the extreme weather has forced them to change various scheduled activities, with some outdoor rallies shifted to interior venues or cancelled.
Similar gusts are also sweeping Australia, ushering in a high-temperature event to the remote areas.
Authorities have issued burning restrictions for fear of forest fires.
