Severe winds hitting velocities of up to 155km/h (96mph) have resulted in around 90,000 properties lacking electricity and forced officials to halt more than 100 aircraft departures, based on local media.
These gusts are impacting the entire South Island and southern parts of the North Island, according to the national weather agency.
Officials in New Zealand have issued rare severe gust advisories - the highest alert level - in central regions encompassing Wellington and Canterbury.
People have been encouraged to stay indoors, refrain from journeys, and make arrangements for more electricity and network failures.
Widespread Impact and Emergency Measures
The electricity loss appears to be affecting homes predominantly in the southern region, while authorities say that the electricity supply was being restored progressively.
Local media have indicated that in certain areas structures have suffered roof damage, while power lines and trees have been toppled by the gales.
Across Wellington, a individual was lost his life after being hit by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was pushed toward moving cars on a road by a strong gust of wind, in a event that was filmed in a widely shared car camera footage.
Aircraft services entering and leaving the urban area have been halted due to the weather, and various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have announced a state of emergency, to support recovery activities.
Strike Action During Severe Conditions
These intense gusts on this day come as tens of thousands of teachers, doctors and other public workers take part in what has been called a "mega strike", demanding higher wages and enhanced employment terms.
Yet the intense climate has forced them to alter some of their plans, with several external protests moved indoors or abandoned.
Similar gusts are affecting the neighboring country, causing a heatwave to the country's outback.
Agencies have issued flame prohibitions for apprehension regarding forest fires.
