Intense gales hitting speeds of as high as 155km/h (96mph) have left around 90,000 homes without power and led agencies to halt in excess of 100 flights, based on regional news sources.
These gusts are impacting the entire South Island and lower areas of the North Island, according to the weather forecasting body.
New Zealand authorities have released uncommon red wind warnings - the top caution category - in central regions including Canterbury and Wellington.
Residents have been encouraged to stay indoors, stay off roads, and make arrangements for additional utility disruptions.
The electricity loss seems to be impacting households predominantly in the South Island, though authorities say that power was being slowly brought back.
Local media have stated that in certain areas homes have lost their roofs, whereas utility poles and vegetation have been knocked down by the winds.
In Wellington, a person was fatally injured after being hit by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was pushed toward moving cars on a road by a intensive burst, in a event that was captured in a popular vehicle recording.
Aircraft services to and from the urban area have been suspended because of the winds, and certain highways and community centers are also closed.
Meanwhile Canterbury officials have issued a emergency situation, to assist emergency management operations.
The wild winds on today occur while tens of thousands of educators, medical professionals and government employees are participating in what has been described as a "mega strike", calling for better pay and working conditions.
However the extreme weather has compelled them to change certain arrangements, with several external protests shifted to interior venues or abandoned.
Similar gusts are affecting Australia, ushering in a heatwave to the remote areas.
Officials have issued burning restrictions for apprehension regarding wildfires.
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