Powerful gusts attaining speeds of approximately 155km/h (96mph) have left approximately 90,000 households without power and forced agencies to cancel over 100 aircraft departures, based on local media.
The gales are impacting the entire southern region and lower areas of the North Island, as stated by the country's meteorological service.
New Zealand authorities have released rare severe gust advisories - the top caution category - in key areas such as these major districts.
People have been advised to remain inside, refrain from journeys, and prepare for more utility disruptions.
Widespread Impact and Crisis Measures
The power cut appears to be affecting households mainly in the southern region, though agencies report that energy was being slowly brought back.
Domestic outlets have stated that in some places roofs have been ripped off houses, whereas power lines and trees have been toppled by the winds.
Within the capital, a individual was killed after being impacted by a tree branch at a frequent walking route on earlier this week.
Additionally in the city, a woman was swept into oncoming traffic on a road by a powerful blast, in a moment that was captured in a popular vehicle recording.
Air travel to and from the city have been halted because of the gusts, and certain highways and community centers are not operating.
At the same time Canterbury officials have declared a crisis declaration, to assist emergency management operations.
Strike Action Amid Extreme Weather
The powerful gales on this day come as numerous of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
But the severe conditions has pressured them to change various scheduled activities, with several external protests relocated inside or abandoned.
Like conditions are affecting Australia, ushering in a heatwave to the country's outback.
Authorities have declared flame prohibitions for fear of forest fires.