Powerful gusts attaining velocities of up to 155km/h (96mph) have resulted in nearly 90,000 properties without power and led authorities to halt more than 100 air travel services, based on local media.
The winds are influencing the complete southern region and southern parts of the northern region, as stated by the national weather agency.
The nation's agencies have released rare high-level wind alerts - the most severe warning - in central regions such as Canterbury and Wellington.
Locals have been urged to stay indoors, refrain from journeys, and get ready for additional utility disruptions.
Broad Impact and Emergency Measures
The electricity loss is primarily influencing residences mainly in the South Island, though authorities state that energy was being gradually reinstated.
Local media have stated that in various locations homes have lost their roofs, while power lines and trees have been brought down by the winds.
Across Wellington, a individual was killed after being impacted by a wooden fragment at a frequent walking route on earlier this week.
Also in the capital, a woman was pushed toward oncoming traffic on a road by a powerful blast, in a moment that was captured in a widely shared car camera footage.
Air travel entering and leaving the urban area have been suspended due to the winds, while various routes and public facilities are shut down.
Simultaneously Canterbury officials have announced a state of emergency, to support disaster response efforts.
Work Stoppages Amid Harsh Weather
The powerful gales on Thursday coincide with numerous of school staff, physicians and civil servants are engaged in what has been described as a "mega strike", calling for improved salaries and workplace environments.
But the extreme weather has forced them to alter some of their plans, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are impacting the nearby nation, causing a heatwave to the remote areas.
Authorities have announced flame prohibitions for fear of bushfires.
