Powerful gusts hitting velocities of approximately 155km/h (96mph) have left nearly 90,000 households lacking electricity and compelled officials to halt over 100 flights, according to domestic outlets.
The gales are affecting the whole South Island and southern sections of the northern region, as stated by the country's meteorological service.
New Zealand authorities have released uncommon red wind warnings - the top caution category - in key areas including Canterbury and Wellington.
Residents have been urged to stay indoors, avoid travel, and prepare for further electricity and network failures.
Broad Damage and Emergency Measures
The power cut seems to be impacting residences mainly in the South Island, while authorities say that energy was being restored progressively.
Local media have stated that in various locations homes have lost their roofs, and power lines and trees have been brought down by the winds.
In Wellington, a man was fatally injured after being hit by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a female was swept into oncoming traffic on a street by a powerful blast, in a incident that was captured in a viral dashcam video.
Aircraft services entering and leaving the city have been suspended due to the gusts, whereas various routes and public facilities are shut down.
At the same time Canterbury officials have announced a state of emergency, to support disaster response efforts.
Strike Action Amid Extreme Conditions
These intense gusts on today come as numerous of teachers, doctors and other public workers take part in what has been called a "major walkout", requesting improved salaries and workplace environments.
Yet the intense climate has pressured them to modify certain arrangements, with some outdoor rallies moved indoors or called off.
Comparable winds are affecting the nearby nation, causing a period of extreme heat to the remote areas.
Authorities have announced flame prohibitions for fear of forest fires.
