Severe gusts attaining velocities of up to 155km/h (96mph) have left around 90,000 properties experiencing outages and led officials to call off over 100 aircraft departures, according to regional news sources.
The gales are affecting the whole South Island and southern parts of the northern region, as stated by the weather forecasting body.
Officials in New Zealand have announced infrequent red wind warnings - the most severe warning - in core zones including these major districts.
Locals have been advised to stay indoors, stay off roads, and make arrangements for further utility disruptions.
Extensive Damage and Crisis Measures
The electricity loss is primarily influencing households mainly in the southern region, although officials state that energy was being gradually reinstated.
Local media have stated that in various locations roofs have been ripped off houses, while utility poles and vegetation have been brought down by the gales.
In Wellington, a man was fatally injured after being struck by a tree branch at a frequent walking route on earlier this week.
Meanwhile in Wellington, a female was blown onto oncoming traffic on a thoroughfare by a powerful blast, in a incident that was filmed in a popular vehicle recording.
Air travel to and from the metropolis have been halted as a result of the weather, whereas various routes and public facilities are not operating.
Simultaneously authorities in Canterbury have declared a state of emergency, to support disaster response efforts.
Labor Protests Alongside Extreme Conditions
The wild winds on today come as many of educators, medical professionals and government employees are engaged in what has been described as a "major walkout", demanding improved salaries and workplace environments.
However the severe conditions has pressured them to alter some of their plans, with several external protests shifted to interior venues or called off.
Like conditions are impacting the neighboring country, bringing a heatwave to the country's outback.
Officials have announced burning restrictions for concern about bushfires.