Powerful winds attaining speeds of approximately 155km/h (96mph) have caused around 90,000 households lacking electricity and compelled authorities to cancel in excess of 100 flights, based on local media.
The gales are impacting the whole southern region and southern parts of the North Island, as stated by the national weather agency.
New Zealand authorities have released rare red wind warnings - the highest alert level - in core zones encompassing these major districts.
Residents have been encouraged to stay indoors, avoid travel, and get ready for more electricity and network failures.
Widespread Impact and Emergency Response
This outage is primarily influencing homes mainly in the South Island, while agencies report that the electricity supply was being gradually reinstated.
Local media have indicated that in certain areas roofs have been ripped off houses, and utility poles and vegetation have been knocked down by the gales.
Across Wellington, a individual was killed after being struck by a falling limb at a frequent walking route on earlier this week.
Additionally in the city, a female was blown onto moving cars on a thoroughfare by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Flights in and out of the urban area have been halted due to the winds, whereas various routes and public facilities are shut down.
At the same time authorities in Canterbury have issued a state of emergency, to support disaster response efforts.
Labor Protests Alongside Severe Weather
The powerful gales on Thursday coincide with many of educators, medical professionals and government employees are engaged in what has been termed a "mega strike", calling for improved salaries and workplace environments.
Yet the extreme weather has pressured them to change certain arrangements, with some outdoor rallies shifted to interior venues or abandoned.
Like conditions are affecting the neighboring country, bringing a heatwave to the remote areas.
Authorities have announced fire bans for fear of wildfires.