Intense gales reaching velocities of up to 155km/h (96mph) have left nearly 90,000 properties without power and led authorities to call off more than 100 air travel services, according to regional news sources.
These gusts are influencing the whole South Island and lower areas of the North Island, as stated by the country's meteorological service.
The nation's agencies have announced infrequent severe gust advisories - the highest alert level - in central regions such as Canterbury and Wellington.
Residents have been advised to remain inside, stay off roads, and get ready for additional power and communication outages.
Broad Impact and Emergency Measures
The power cut is primarily influencing households mainly in the southern region, while authorities say that the electricity supply was being gradually reinstated.
Domestic outlets have stated that in certain areas homes have lost their roofs, whereas utility poles and vegetation have been toppled by the winds.
Within the capital, a man was fatally injured after being impacted by a falling limb at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a female was swept into moving cars on a road by a strong gust of wind, in a event that was filmed in a popular vehicle recording.
Air travel in and out of the metropolis have been suspended as a result of the weather, whereas various routes and public facilities are also closed.
At the same time authorities in Canterbury have declared a state of emergency, to facilitate emergency management operations.
Strike Action Amid Harsh Weather
The wild winds on Thursday come as many of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to alter certain arrangements, with several external protests moved indoors or cancelled.
Similar gusts are also sweeping the neighboring country, ushering in a high-temperature event to the country's outback.
Authorities have announced fire bans for fear of wildfires.
