Intense winds reaching speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 households lacking electricity and forced officials to halt over 100 flights, according to regional news sources.
The gales are affecting the entire South Island and southern sections of the North Island, per the national weather agency.
The nation's agencies have issued uncommon red wind warnings - the highest alert level - in key areas including Canterbury and Wellington.
Residents have been advised to stay indoors, refrain from journeys, and prepare for further utility disruptions.
Widespread Damage and Crisis Response
The electricity loss appears to be affecting households mostly in the southern region, although officials report that energy was being slowly brought back.
Domestic outlets have reported that in some places roofs have been ripped off houses, whereas power lines and trees have been toppled by the winds.
Across Wellington, a individual was killed after being hit by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a woman was pushed toward oncoming traffic on a thoroughfare by a strong gust of wind, in a incident that was captured in a viral dashcam video.
Flights to and from the city have been halted due to the weather, whereas some roads and libraries are also closed.
Meanwhile authorities in Canterbury have announced a emergency situation, to assist recovery activities.
Strike Action During Severe Conditions
The powerful gales on today come as many of educators, medical professionals and government employees are engaged in what has been called a "significant labor action", requesting higher wages and enhanced employment terms.
But the severe conditions has pressured them to alter certain arrangements, with several external protests moved indoors or called off.
Similar gusts are also sweeping Australia, ushering in a heatwave to the remote areas.
Authorities have declared fire bans for fear of wildfires.