Powerful winds hitting velocities of as high as 155km/h (96mph) have caused nearly 90,000 households without power and forced agencies to call off in excess of 100 air travel services, as reported by regional news sources.
These gusts are affecting the complete southern region and lower areas of the North Island, according to the country's meteorological service.
Officials in New Zealand have released infrequent high-level wind alerts - the highest alert level - in core zones such as Canterbury and Wellington.
People have been advised to avoid going outside, avoid travel, and get ready for more utility disruptions.
Broad Destruction and Crisis Response
The electricity loss appears to be affecting homes predominantly in the southern region, while officials say that the electricity supply was being gradually reinstated.
Regional news have stated that in certain areas roofs have been ripped off houses, whereas power lines and trees have been brought down by the winds.
In Wellington, a man was killed after being hit by a tree branch at a well-known hiking path on earlier this week.
Also in the capital, a individual was pushed toward approaching vehicles on a thoroughfare by a strong gust of wind, in a event that was filmed in a viral dashcam video.
Aircraft services entering and leaving the city have been halted as a result of the weather, and some roads and libraries are shut down.
At the same time local leaders have announced a crisis declaration, to assist emergency management operations.
Labor Protests Alongside Severe Weather
These intense gusts on Thursday come as many of teachers, doctors and other public workers take part in what has been termed a "significant labor action", demanding better pay and working conditions.
However the severe conditions has compelled them to alter some of their plans, with various open-air gatherings shifted to interior venues or abandoned.
Similar gusts are also sweeping Australia, causing a heatwave to the remote areas.
Agencies have announced burning restrictions for fear of wildfires.
