Intense gusts attaining velocities of up to 155km/h (96mph) have resulted in nearly 90,000 properties without power and forced officials to call off more than 100 air travel services, according to regional news sources.
These gusts are affecting the whole southern region and southern parts of the northern region, according to the country's meteorological service.
New Zealand authorities have released rare severe gust advisories - the highest alert level - in key areas encompassing Canterbury and Wellington.
Residents have been urged to avoid going outside, refrain from journeys, and make arrangements for further electricity and network failures.
Extensive Destruction and Emergency Response
The electricity loss seems to be impacting residences predominantly in the South Island, while officials say that the electricity supply was being restored progressively.
Local media have reported that in various locations structures have suffered roof damage, while power lines and trees have been brought down by the winds.
Within the capital, a man was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a woman was blown onto moving cars on a street by a intensive burst, in a event that was captured in a widely shared car camera footage.
Flights to and from the metropolis have been halted due to the gusts, whereas some roads and libraries are also closed.
At the same time Canterbury officials have declared a state of emergency, to support emergency management operations.
Work Stoppages During Extreme Weather
The powerful gales on today coincide with tens of thousands of teachers, doctors and other public workers are engaged in what has been described as a "mega strike", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to alter some of their plans, with some outdoor rallies shifted to interior venues or abandoned.
Comparable winds are impacting Australia, causing a heatwave to the remote areas.
Agencies have issued fire bans for fear of wildfires.
