Powerful gales reaching speeds of as high as 155km/h (96mph) have resulted in around 90,000 properties experiencing outages and forced authorities to cancel in excess of 100 air travel services, according to local media.
The gales are influencing the whole southern region and southern parts of the northern region, according to the weather forecasting body.
The nation's agencies have released uncommon red wind warnings - the most severe warning - in central regions including Wellington and Canterbury.
Locals have been urged to avoid going outside, refrain from journeys, and prepare for additional power and communication outages.
Widespread Damage and Crisis Measures
This outage seems to be impacting homes predominantly in the South Island, while officials state that power was being slowly brought back.
Local media have indicated that in some places roofs have been ripped off houses, and power lines and trees have been toppled by the gusts.
In Wellington, a individual was fatally injured after being struck by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into oncoming traffic on a road by a intensive burst, in a event that was recorded in a viral dashcam video.
Flights to and from the urban area have been halted because of the winds, whereas various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have announced a state of emergency, to support disaster response efforts.
Strike Action Amid Severe Conditions
The wild winds on this day coincide with many of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", requesting higher wages and enhanced employment terms.
However the extreme weather has forced them to modify some of their plans, with various open-air gatherings relocated inside or abandoned.
Comparable winds are affecting Australia, ushering in a heatwave to the remote areas.
Authorities have declared burning restrictions for apprehension regarding bushfires.
