Severe gusts hitting speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 households lacking electricity and forced agencies to halt in excess of 100 flights, based on local media.
These gusts are affecting the complete South Island and southern parts of the northern region, according to the national weather agency.
New Zealand authorities have issued rare high-level wind alerts - the top caution category - in central regions such as Canterbury and Wellington.
Locals have been encouraged to remain inside, refrain from journeys, and make arrangements for further electricity and network failures.
Extensive Impact and Emergency Response
The power cut seems to be impacting homes predominantly in the South Island, while authorities say that power was being slowly brought back.
Local media have stated that in certain areas structures have suffered roof damage, whereas power lines and trees have been knocked down by the gusts.
Within the capital, a man was fatally injured after being struck by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was pushed toward oncoming traffic on a road by a strong gust of wind, in a event that was recorded in a popular vehicle recording.
Flights to and from the urban area have been cancelled because of the gusts, while some roads and libraries are also closed.
Meanwhile Canterbury officials have announced a emergency situation, to support recovery activities.
Labor Protests During Severe Conditions
The powerful gales on today coincide with tens of thousands of educators, medical professionals and government employees take part in what has been termed a "mega strike", calling for improved salaries and workplace environments.
However the extreme weather has compelled them to modify some of their plans, with some outdoor rallies moved indoors or abandoned.
Similar gusts are impacting Australia, bringing a high-temperature event to the nation's interior regions.
Agencies have issued burning restrictions for fear of forest fires.
