Severe gusts hitting speeds of up to 155km/h (96mph) have caused approximately 90,000 homes without power and forced agencies to cancel more than 100 air travel services, according to domestic outlets.
The gales are affecting the whole southern region and southern parts of the northern region, as stated by the national weather agency.
New Zealand authorities have announced infrequent high-level wind alerts - the highest alert level - in core zones encompassing these major districts.
Locals have been advised to avoid going outside, refrain from journeys, and make arrangements for more electricity and network failures.
Broad Damage and Crisis Measures
The electricity loss appears to be affecting residences mostly in the South Island, while officials state that energy was being gradually reinstated.
Regional news have indicated that in various locations structures have suffered roof damage, while power lines and trees have been knocked down by the gales.
In Wellington, a individual was fatally injured after being impacted by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a female was pushed toward oncoming traffic on a street by a strong gust of wind, in a incident that was recorded in a widely shared car camera footage.
Flights entering and leaving the city have been halted as a result of the winds, and some roads and libraries are shut down.
Simultaneously authorities in Canterbury have declared a state of emergency, to assist disaster response efforts.
Labor Protests Alongside Extreme Weather
The powerful gales on today come as many of teachers, doctors and other public workers are engaged in what has been described as a "significant labor action", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to alter certain arrangements, with several external protests moved indoors or cancelled.
Like conditions are also sweeping the neighboring country, ushering in a period of extreme heat to the remote areas.
Agencies have announced burning restrictions for concern about forest fires.