Severe winds hitting velocities of up to 155km/h (96mph) have left around 90,000 homes without power and led agencies to halt in excess of 100 flights, as reported by local media.
The gales are impacting the whole southern region and southern parts of the northern region, as stated by the national weather agency.
Officials in New Zealand have released uncommon high-level wind alerts - the highest alert level - in key areas encompassing Canterbury and Wellington.
People have been advised to avoid going outside, stay off roads, and get ready for further electricity and network failures.
Widespread Destruction and Crisis Measures
The power cut appears to be affecting households mainly in the South Island, while authorities report that the electricity supply was being restored progressively.
Domestic outlets have indicated that in various locations structures have suffered roof damage, while utility poles and vegetation have been knocked down by the winds.
Across Wellington, a man was lost his life after being struck by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a female was swept into oncoming traffic on a thoroughfare by a strong gust of wind, in a moment that was recorded in a viral dashcam video.
Aircraft services entering and leaving the metropolis have been cancelled because of the winds, whereas various routes and public facilities are shut down.
Meanwhile Canterbury officials have declared a crisis declaration, to support recovery activities.
Work Stoppages Amid Extreme Weather
The powerful gales on this day come as many of school staff, physicians and civil servants are engaged in what has been termed a "significant labor action", calling for improved salaries and workplace environments.
But the intense climate has forced them to modify some of their plans, with various open-air gatherings moved indoors or cancelled.
Like conditions are also sweeping the nearby nation, causing a heatwave to the country's outback.
Authorities have announced burning restrictions for concern about wildfires.
