Intense gusts attaining speeds of as high as 155km/h (96mph) have left approximately 90,000 properties without power and led agencies to cancel more than 100 air travel services, as reported by local media.
The winds are impacting the whole South Island and lower areas of the North Island, as stated by the national weather agency.
New Zealand authorities have announced rare red wind warnings - the top caution category - in central regions including Canterbury and Wellington.
Residents have been advised to avoid going outside, refrain from journeys, and prepare for further utility disruptions.
Widespread Impact and Crisis Measures
The electricity loss is primarily influencing households mostly in the South Island, while officials state that power was being restored progressively.
Domestic outlets have reported that in certain areas homes have lost their roofs, and utility poles and vegetation have been knocked down by the winds.
Across Wellington, a individual was fatally injured after being struck by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into approaching vehicles on a street by a strong gust of wind, in a moment that was captured in a popular vehicle recording.
Aircraft services entering and leaving the city have been halted due to the winds, and various routes and public facilities are shut down.
At the same time Canterbury officials have announced a emergency situation, to support emergency management operations.
Strike Action Alongside Severe Conditions
These intense gusts on this day coincide with many of educators, medical professionals and government employees take part in what has been termed a "mega strike", requesting higher wages and enhanced employment terms.
Yet the severe conditions has pressured them to change some of their plans, with some outdoor rallies moved indoors or cancelled.
Comparable winds are impacting Australia, causing a heatwave to the nation's interior regions.
Authorities have announced burning restrictions for fear of wildfires.
