Intense winds reaching speeds of up to 155km/h (96mph) have left approximately 90,000 homes without power and compelled authorities to halt over 100 aircraft departures, based on domestic outlets.
The gales are influencing the complete South Island and southern parts of the North Island, per the country's meteorological service.
Officials in New Zealand have released infrequent severe gust advisories - the highest alert level - in key areas encompassing Canterbury and Wellington.
Residents have been advised to avoid going outside, stay off roads, and make arrangements for more utility disruptions.
Widespread Impact and Emergency Response
The power cut seems to be impacting households mainly in the South Island, though authorities say that power was being slowly brought back.
Local media have indicated that in various locations homes have lost their roofs, while power lines and trees have been toppled by the winds.
In Wellington, a individual was killed after being hit by a wooden fragment at a popular trail walking spot on earlier this week.
Also in the capital, a woman was swept into oncoming traffic on a road by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been halted due to the winds, whereas certain highways and community centers are also closed.
At the same time authorities in Canterbury have issued a crisis declaration, to assist disaster response efforts.
Work Stoppages During Severe Conditions
The wild winds on Thursday occur while tens of thousands of educators, medical professionals and government employees are participating in what has been termed a "significant labor action", requesting better pay and working conditions.
However the severe conditions has pressured them to alter various scheduled activities, with several external protests relocated inside or cancelled.
Like conditions are impacting Australia, ushering in a heatwave to the nation's interior regions.
Agencies have issued flame prohibitions for concern about bushfires.
