Powerful winds reaching speeds of as high as 155km/h (96mph) have caused nearly 90,000 households without power and forced authorities to cancel more than 100 aircraft departures, based on domestic outlets.
The winds are influencing the complete South Island and southern sections of the North Island, according to the country's meteorological service.
The nation's agencies have released rare severe gust advisories - the highest alert level - in key areas including Canterbury and Wellington.
Residents have been urged to avoid going outside, stay off roads, and prepare for more utility disruptions.
Broad Damage and Emergency Response
The power cut seems to be impacting residences mostly in the southern region, although authorities report that the electricity supply was being restored progressively.
Regional news have stated that in some places homes have lost their roofs, whereas utility poles and vegetation have been toppled by the gusts.
Across Wellington, a individual was lost his life after being impacted by a wooden fragment at a popular trail walking spot on earlier this week.
Additionally in the city, a woman was blown onto moving cars on a street by a intensive burst, in a incident that was captured in a popular vehicle recording.
Air travel to and from the urban area have been halted because of the weather, whereas some roads and libraries are also closed.
Simultaneously local leaders have announced a crisis declaration, to assist disaster response efforts.
Labor Protests Alongside Severe Weather
The powerful gales on today come as numerous of educators, medical professionals and government employees take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
But the severe conditions has compelled them to alter certain arrangements, with various open-air gatherings relocated inside or called off.
Comparable winds are affecting Australia, bringing a high-temperature event to the remote areas.
Agencies have announced fire bans for concern about wildfires.