Intense winds hitting velocities of up to 155km/h (96mph) have caused nearly 90,000 households lacking electricity and compelled agencies to halt more than 100 flights, based on regional news sources.
The winds are affecting the whole southern region and lower areas of the northern region, according to the weather forecasting body.
New Zealand authorities have released uncommon severe gust advisories - the highest alert level - in core zones such as Canterbury and Wellington.
People have been encouraged to avoid going outside, avoid travel, and make arrangements for further utility disruptions.
Extensive Destruction and Emergency Response
The electricity loss seems to be impacting homes mainly in the southern region, although authorities say that energy was being slowly brought back.
Domestic outlets have indicated that in various locations structures have suffered roof damage, whereas power lines and trees have been brought down by the gales.
In Wellington, a man was lost his life after being hit by a wooden fragment at a well-known hiking path on Tuesday.
Also in the capital, a female was pushed toward moving cars on a road by a intensive burst, in a event that was captured in a widely shared car camera footage.
Aircraft services entering and leaving the metropolis have been halted because of the winds, while some roads and libraries are also closed.
Simultaneously authorities in Canterbury have declared a state of emergency, to assist disaster response efforts.
Work Stoppages Alongside Extreme Conditions
The powerful gales on this day coincide with tens of thousands of educators, medical professionals and government employees take part in what has been described as a "significant labor action", calling for improved salaries and workplace environments.
However the intense climate has pressured them to modify certain arrangements, with various open-air gatherings shifted to interior venues or called off.
Like conditions are affecting the nearby nation, bringing a heatwave to the nation's interior regions.
Officials have announced flame prohibitions for fear of wildfires.
