Intense gales hitting velocities of approximately 155km/h (96mph) have resulted in around 90,000 households lacking electricity and forced agencies to halt in excess of 100 air travel services, according to domestic outlets.
These gusts are affecting the whole South Island and southern sections of the northern region, per the weather forecasting body.
Officials in New Zealand have announced rare severe gust advisories - the highest alert level - in central regions such as these major districts.
Residents have been advised to remain inside, avoid travel, and prepare for additional electricity and network failures.
Broad Damage and Emergency Response
This outage seems to be impacting households mainly in the South Island, although authorities report that the electricity supply was being gradually reinstated.
Local media have stated that in certain areas structures have suffered roof damage, and utility poles and vegetation have been brought down by the gusts.
Across Wellington, a man was killed after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was swept into approaching vehicles on a street by a intensive burst, in a event that was captured in a popular vehicle recording.
Flights in and out of the city have been suspended as a result of the weather, while some roads and libraries are shut down.
Simultaneously local leaders have declared a state of emergency, to assist disaster response efforts.
Strike Action During Harsh Weather
The wild winds on today occur while numerous of school staff, physicians and civil servants are engaged in what has been described as a "significant labor action", calling for better pay and working conditions.
Yet the intense climate has compelled them to modify some of their plans, with various open-air gatherings relocated inside or abandoned.
Similar gusts are impacting the nearby nation, bringing a heatwave to the remote areas.
Authorities have declared fire bans for apprehension regarding bushfires.