Intense gusts attaining speeds of as high as 155km/h (96mph) have left nearly 90,000 homes experiencing outages and led officials to halt more than 100 aircraft departures, as reported by regional news sources.
The gales are affecting the complete South Island and southern parts of the northern region, as stated by the country's meteorological service.
Officials in New Zealand have announced rare severe gust advisories - the highest alert level - in central regions such as these major districts.
Residents have been urged to remain inside, avoid travel, and prepare for more electricity and network failures.
Broad Impact and Crisis Measures
The electricity loss appears to be affecting residences mainly in the southern region, although officials say that energy was being gradually reinstated.
Local media have reported that in certain areas roofs have been ripped off houses, while utility poles and vegetation have been knocked down by the gales.
Across Wellington, a person was killed after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was swept into oncoming traffic on a street by a strong gust of wind, in a moment that was recorded in a popular vehicle recording.
Flights to and from the metropolis have been suspended due to the weather, and some roads and libraries are also closed.
Simultaneously local leaders have issued a emergency situation, to assist disaster response efforts.
Work Stoppages Alongside Severe Conditions
The powerful gales on Thursday coincide with many of educators, medical professionals and government employees are participating in what has been described as a "significant labor action", calling for better pay and working conditions.
However the intense climate has forced them to change some of their plans, with several external protests moved indoors or cancelled.
Like conditions are impacting Australia, bringing a heatwave to the remote areas.
Agencies have issued fire bans for fear of bushfires.