Severe winds attaining velocities of approximately 155km/h (96mph) have caused nearly 90,000 homes without power and forced authorities to cancel over 100 flights, as reported by regional news sources.
The gales are influencing the whole South Island and southern sections of the northern region, according to the national weather agency.
New Zealand authorities have released uncommon severe gust advisories - the top caution category - in central regions encompassing these major districts.
Locals have been encouraged to stay indoors, avoid travel, and get ready for more electricity and network failures.
Widespread Damage and Crisis Response
The power cut appears to be affecting residences mostly in the southern region, though agencies state that energy was being restored progressively.
Local media have reported that in certain areas roofs have been ripped off houses, and utility poles and vegetation have been brought down by the gusts.
In Wellington, a person was fatally injured after being impacted by a falling limb at a well-known hiking path on Tuesday.
Also in the capital, a woman was swept into moving cars on a thoroughfare by a intensive burst, in a event that was filmed in a widely shared car camera footage.
Flights to and from the urban area have been suspended due to the weather, and some roads and libraries are shut down.
Meanwhile local leaders have announced a emergency situation, to facilitate disaster response efforts.
Strike Action Amid Severe Conditions
The wild winds on Thursday occur while numerous of educators, medical professionals and government employees are participating in what has been termed a "major walkout", demanding better pay and working conditions.
But the extreme weather has forced them to modify some of their plans, with some outdoor rallies relocated inside or cancelled.
Similar gusts are impacting the neighboring country, bringing a high-temperature event to the country's outback.
Agencies have declared flame prohibitions for fear of forest fires.
