Severe gales attaining speeds of approximately 155km/h (96mph) have caused approximately 90,000 households without power and forced agencies to call off in excess of 100 air travel services, based on local media.
These gusts are affecting the entire southern region and lower areas of the North Island, according to the national weather agency.
New Zealand authorities have released rare severe gust advisories - the top caution category - in core zones such as Canterbury and Wellington.
Locals have been advised to stay indoors, stay off roads, and prepare for more electricity and network failures.
Extensive Destruction and Emergency Response
The electricity loss appears to be affecting homes mainly in the southern region, while agencies say that energy was being slowly brought back.
Local media have reported that in various locations structures have suffered roof damage, and utility poles and vegetation have been knocked down by the winds.
Across Wellington, a man was lost his life after being impacted by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a female was blown onto moving cars on a thoroughfare by a intensive burst, in a incident that was recorded in a viral dashcam video.
Air travel entering and leaving the metropolis have been halted due to the gusts, while some roads and libraries are not operating.
Meanwhile Canterbury officials have declared a state of emergency, to assist recovery activities.
Work Stoppages Alongside Extreme Conditions
These intense gusts on Thursday occur while many of educators, medical professionals and government employees take part in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
But the intense climate has forced them to modify various scheduled activities, with several external protests relocated inside or cancelled.
Comparable winds are also sweeping the nearby nation, causing a high-temperature event to the country's outback.
Authorities have announced fire bans for apprehension regarding wildfires.