Powerful gales attaining speeds of up to 155km/h (96mph) have caused nearly 90,000 homes without power and led agencies to halt more than 100 aircraft departures, according to domestic outlets.
The gales are affecting the whole southern region and southern parts of the North Island, according to the country's meteorological service.
Officials in New Zealand have released rare severe gust advisories - the top caution category - in key areas encompassing Canterbury and Wellington.
People have been urged to avoid going outside, refrain from journeys, and get ready for additional electricity and network failures.
Extensive Impact and Emergency Response
The electricity loss seems to be impacting households mainly in the South Island, though officials report that the electricity supply was being gradually reinstated.
Local media have indicated that in various locations structures have suffered roof damage, while power lines and trees have been brought down by the gusts.
In Wellington, a man was fatally injured after being struck by a falling limb at a frequent walking route on earlier this week.
Also in the capital, a woman was pushed toward approaching vehicles on a thoroughfare by a intensive burst, in a event that was recorded in a widely shared car camera footage.
Flights to and from the city have been cancelled because of the winds, whereas certain highways and community centers are also closed.
Simultaneously local leaders have issued a state of emergency, to assist emergency management operations.
Work Stoppages Amid Extreme Conditions
The wild winds on this day occur while tens of thousands of school staff, physicians and civil servants take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
But the severe conditions has compelled them to alter some of their plans, with some outdoor rallies moved indoors or abandoned.
Comparable winds are also sweeping the nearby nation, bringing a period of extreme heat to the country's outback.
Authorities have declared flame prohibitions for fear of wildfires.
