Intense gusts reaching speeds of approximately 155km/h (96mph) have left around 90,000 homes without power and compelled officials to call off over 100 flights, as reported by regional news sources.
The gales are influencing the complete South Island and southern sections of the North Island, per the country's meteorological service.
New Zealand authorities have released infrequent high-level wind alerts - the highest alert level - in core zones including Canterbury and Wellington.
Residents have been urged to remain inside, avoid travel, and make arrangements for further electricity and network failures.
Extensive Impact and Emergency Measures
The electricity loss seems to be impacting homes predominantly in the South Island, though officials say that the electricity supply was being restored progressively.
Local media have stated that in some places roofs have been ripped off houses, and utility poles and vegetation have been toppled by the gales.
In Wellington, a man was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a woman was blown onto moving cars on a road by a powerful blast, in a moment that was recorded in a widely shared car camera footage.
Air travel entering and leaving the metropolis have been cancelled due to the winds, whereas some roads and libraries are also closed.
Simultaneously Canterbury officials have declared a state of emergency, to support recovery activities.
Labor Protests Alongside Extreme Conditions
The powerful gales on Thursday occur while many of educators, medical professionals and government employees are engaged in what has been called a "major walkout", demanding improved salaries and workplace environments.
But the extreme weather has compelled them to alter some of their plans, with several external protests relocated inside or abandoned.
Like conditions are affecting the neighboring country, ushering in a high-temperature event to the country's outback.
Authorities have issued burning restrictions for concern about forest fires.
