Severe winds reaching speeds of approximately 155km/h (96mph) have left approximately 90,000 homes without power and compelled agencies to halt more than 100 aircraft departures, based on domestic outlets.
The gales are impacting the complete South Island and lower areas of the North Island, as stated by the national weather agency.
New Zealand authorities have issued infrequent severe gust advisories - the top caution category - in central regions including Canterbury and Wellington.
Residents have been advised to avoid going outside, stay off roads, and make arrangements for more utility disruptions.
Widespread Impact and Crisis Response
The power cut seems to be impacting homes predominantly in the South Island, although agencies state that the electricity supply was being slowly brought back.
Local media have stated that in various locations roofs have been ripped off houses, and power lines and trees have been knocked down by the winds.
Across Wellington, a person was fatally injured after being hit by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a individual was blown onto approaching vehicles on a street by a intensive burst, in a moment that was captured in a popular vehicle recording.
Air travel in and out of the metropolis have been suspended because of the gusts, and various routes and public facilities are also closed.
At the same time Canterbury officials have declared a crisis declaration, to facilitate emergency management operations.
Strike Action During Severe Conditions
These intense gusts on today coincide with numerous of educators, medical professionals and government employees take part in what has been described as a "significant labor action", requesting higher wages and enhanced employment terms.
However the severe conditions has compelled them to change various scheduled activities, with several external protests moved indoors or cancelled.
Comparable winds are impacting Australia, causing a high-temperature event to the nation's interior regions.
Officials have issued fire bans for concern about bushfires.