Intense gales hitting velocities of approximately 155km/h (96mph) have caused around 90,000 properties without power and forced officials to cancel more than 100 flights, as reported by domestic outlets.
These gusts are affecting the entire South Island and southern parts of the northern region, per the weather forecasting body.
New Zealand authorities have announced uncommon red wind warnings - the top caution category - in core zones such as Wellington and Canterbury.
People have been advised to avoid going outside, refrain from journeys, and prepare for further utility disruptions.
Broad Damage and Emergency Response
The power cut is primarily influencing households mainly in the southern region, while agencies say that the electricity supply was being slowly brought back.
Domestic outlets have indicated that in various locations roofs have been ripped off houses, while power lines and trees have been knocked down by the gusts.
In Wellington, a person was lost his life after being hit by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into moving cars on a street by a intensive burst, in a event that was recorded in a popular vehicle recording.
Air travel entering and leaving the city have been halted because of the weather, while certain highways and community centers are not operating.
Simultaneously local leaders have issued a state of emergency, to facilitate recovery activities.
Labor Protests Amid Severe Weather
The powerful gales on Thursday occur while tens of thousands of educators, medical professionals and government employees are participating in what has been termed a "mega strike", demanding improved salaries and workplace environments.
Yet the extreme weather has pressured them to modify some of their plans, with various open-air gatherings relocated inside or abandoned.
Comparable winds are also sweeping Australia, causing a heatwave to the remote areas.
Officials have announced fire bans for fear of bushfires.
