Powerful gusts attaining velocities of approximately 155km/h (96mph) have left around 90,000 homes without power and forced agencies to halt over 100 air travel services, according to local media.
These gusts are impacting the entire South Island and southern sections of the North Island, according to the national weather agency.
Officials in New Zealand have issued infrequent severe gust advisories - the highest alert level - in core zones encompassing Canterbury and Wellington.
Residents have been urged to avoid going outside, refrain from journeys, and make arrangements for more utility disruptions.
Extensive Impact and Emergency Response
The electricity loss seems to be impacting residences mostly in the southern region, though agencies state that energy was being slowly brought back.
Local media have reported that in certain areas homes have lost their roofs, and power lines and trees have been brought down by the gales.
Across Wellington, a person was killed after being hit by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a road by a intensive burst, in a incident that was filmed in a popular vehicle recording.
Air travel entering and leaving the metropolis have been cancelled because of the winds, while some roads and libraries are shut down.
At the same time Canterbury officials have announced a state of emergency, to facilitate recovery activities.
Strike Action Amid Harsh Conditions
The powerful gales on Thursday come as numerous of educators, medical professionals and government employees take part in what has been termed a "mega strike", demanding higher wages and enhanced employment terms.
However the extreme weather has compelled them to modify some of their plans, with some outdoor rallies moved indoors or cancelled.
Comparable winds are affecting the neighboring country, ushering in a period of extreme heat to the remote areas.
Authorities have declared flame prohibitions for apprehension regarding forest fires.
