Powerful winds attaining speeds of up to 155km/h (96mph) have left nearly 90,000 homes lacking electricity and forced officials to halt more than 100 air travel services, as reported by domestic outlets.
The winds are influencing the whole South Island and lower areas of the North Island, per the weather forecasting body.
New Zealand authorities have released rare high-level wind alerts - the highest alert level - in key areas including Canterbury and Wellington.
Locals have been advised to stay indoors, refrain from journeys, and prepare for more electricity and network failures.
Widespread Destruction and Crisis Measures
The power cut appears to be affecting residences predominantly in the southern region, though officials report that energy was being gradually reinstated.
Local media have stated that in some places homes have lost their roofs, whereas power lines and trees have been brought down by the gales.
In Wellington, a person was killed after being impacted by a wooden fragment at a well-known hiking path on earlier this week.
Additionally in the city, a woman was pushed toward approaching vehicles on a thoroughfare by a powerful blast, in a incident that was filmed in a popular vehicle recording.
Air travel in and out of the city have been halted because of the winds, while various routes and public facilities are not operating.
Simultaneously authorities in Canterbury have announced a crisis declaration, to support recovery activities.
Strike Action Alongside Severe Weather
The wild winds on Thursday coincide with many of educators, medical professionals and government employees take part in what has been described as a "major walkout", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to modify certain arrangements, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are affecting Australia, causing a period of extreme heat to the remote areas.
Authorities have announced fire bans for concern about wildfires.
