Severe gusts attaining velocities of approximately 155km/h (96mph) have left approximately 90,000 homes without power and forced agencies to call off in excess of 100 air travel services, based on domestic outlets.
The gales are impacting the complete South Island and southern parts of the North Island, per the weather forecasting body.
New Zealand authorities have issued infrequent red wind warnings - the top caution category - in key areas including Canterbury and Wellington.
Residents have been advised to stay indoors, refrain from journeys, and make arrangements for further electricity and network failures.
Extensive Destruction and Crisis Measures
The power cut is primarily influencing homes predominantly in the southern region, while agencies report that the electricity supply was being gradually reinstated.
Regional news have reported that in some places structures have suffered roof damage, whereas utility poles and vegetation have been brought down by the gusts.
In Wellington, a man was killed after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Additionally in the city, a woman was swept into oncoming traffic on a road by a intensive burst, in a moment that was filmed in a viral dashcam video.
Aircraft services entering and leaving the city have been cancelled as a result of the winds, while certain highways and community centers are also closed.
At the same time Canterbury officials have announced a crisis declaration, to assist disaster response efforts.
Strike Action During Extreme Weather
The powerful gales on today come as many of school staff, physicians and civil servants are participating in what has been termed a "major walkout", requesting better pay and working conditions.
However the intense climate has pressured them to modify certain arrangements, with some outdoor rallies moved indoors or abandoned.
Like conditions are affecting Australia, bringing a period of extreme heat to the nation's interior regions.
Officials have issued burning restrictions for concern about forest fires.