Intense gusts reaching velocities of up to 155km/h (96mph) have resulted in nearly 90,000 homes without power and forced agencies to cancel more than 100 aircraft departures, as reported by local media.
The winds are impacting the entire southern region and lower areas of the northern region, per the country's meteorological service.
The nation's agencies have issued uncommon red wind warnings - the most severe warning - in core zones including Canterbury and Wellington.
Locals have been encouraged to remain inside, stay off roads, and get ready for additional electricity and network failures.
Extensive Damage and Crisis Measures
The power cut is primarily influencing households predominantly in the South Island, though agencies report that the electricity supply was being slowly brought back.
Domestic outlets have stated that in some places structures have suffered roof damage, and utility poles and vegetation have been toppled by the winds.
Across Wellington, a man was fatally injured after being hit by a falling limb at a frequent walking route on Tuesday.
Additionally in the city, a female was pushed toward moving cars on a street by a strong gust of wind, in a incident that was recorded in a widely shared car camera footage.
Aircraft services in and out of the metropolis have been suspended due to the gusts, and some roads and libraries are also closed.
Simultaneously authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Strike Action Amid Severe Conditions
The powerful gales on today occur while numerous of teachers, doctors and other public workers are participating in what has been termed a "major walkout", calling for better pay and working conditions.
Yet the extreme weather has compelled them to modify some of their plans, with various open-air gatherings moved indoors or abandoned.
Comparable winds are affecting Australia, causing a heatwave to the remote areas.
Authorities have issued fire bans for fear of wildfires.
