Intense winds reaching speeds of up to 155km/h (96mph) have left approximately 90,000 homes lacking electricity and forced authorities to cancel over 100 air travel services, according to domestic outlets.
These gusts are influencing the entire southern region and southern sections of the North Island, according to the national weather agency.
The nation's agencies have announced infrequent red wind warnings - the highest alert level - in key areas such as Canterbury and Wellington.
People have been encouraged to avoid going outside, avoid travel, and get ready for more utility disruptions.
Extensive Destruction and Crisis Measures
The power cut is primarily influencing homes mainly in the South Island, although officials say that power was being restored progressively.
Domestic outlets have stated that in some places roofs have been ripped off houses, whereas utility poles and vegetation have been knocked down by the gusts.
Across Wellington, a individual was fatally injured after being struck by a wooden fragment at a frequent walking route on earlier this week.
Meanwhile in Wellington, a female was swept into moving cars on a road by a intensive burst, in a incident that was recorded in a widely shared car camera footage.
Aircraft services entering and leaving the metropolis have been cancelled as a result of the weather, and some roads and libraries are shut down.
Simultaneously Canterbury officials have announced a crisis declaration, to assist emergency management operations.
Strike Action Alongside Harsh Weather
These intense gusts on Thursday coincide with many of school staff, physicians and civil servants are engaged in what has been called a "major walkout", demanding improved salaries and workplace environments.
But the intense climate has pressured them to change some of their plans, with some outdoor rallies shifted to interior venues or cancelled.
Comparable winds are also sweeping Australia, ushering in a period of extreme heat to the country's outback.
Officials have announced flame prohibitions for fear of forest fires.
