Intense gusts attaining velocities of up to 155km/h (96mph) have left approximately 90,000 homes experiencing outages and compelled authorities to call off over 100 aircraft departures, according to domestic outlets.
The gales are influencing the entire southern region and southern sections of the North Island, according to the weather forecasting body.
Officials in New Zealand have released infrequent severe gust advisories - the most severe warning - in central regions encompassing Wellington and Canterbury.
People have been advised to remain inside, stay off roads, and make arrangements for further power and communication outages.
Broad Impact and Emergency Response
The electricity loss appears to be affecting households mainly in the southern region, while agencies state that the electricity supply was being restored progressively.
Domestic outlets have indicated that in some places homes have lost their roofs, and power lines and trees have been knocked down by the gales.
Within the capital, a individual was fatally injured after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a individual was blown onto oncoming traffic on a street by a intensive burst, in a incident that was filmed in a popular vehicle recording.
Aircraft services in and out of the city have been cancelled due to the winds, while various routes and public facilities are shut down.
At the same time Canterbury officials have declared a crisis declaration, to support disaster response efforts.
Strike Action Amid Severe Weather
These intense gusts on today come as tens of thousands of school staff, physicians and civil servants take part in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
However the severe conditions has pressured them to alter some of their plans, with some outdoor rallies moved indoors or called off.
Similar gusts are also sweeping Australia, bringing a period of extreme heat to the remote areas.
Officials have announced flame prohibitions for concern about bushfires.