Intense gales reaching velocities of up to 155km/h (96mph) have caused around 90,000 properties lacking electricity and compelled agencies to halt more than 100 air travel services, based on domestic outlets.
The gales are influencing the whole southern region and lower areas of the North Island, according to the weather forecasting body.
Officials in New Zealand have announced infrequent severe gust advisories - the highest alert level - in central regions including Wellington and Canterbury.
Locals have been encouraged to remain inside, refrain from journeys, and make arrangements for further utility disruptions.
Extensive Impact and Crisis Measures
The electricity loss appears to be affecting households mostly in the South Island, although agencies state that energy was being slowly brought back.
Domestic outlets have indicated that in various locations homes have lost their roofs, whereas utility poles and vegetation have been knocked down by the winds.
Within the capital, a man was killed after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a individual was pushed toward oncoming traffic on a street by a powerful blast, in a event that was filmed in a popular vehicle recording.
Air travel to and from the city have been suspended due to the winds, while some roads and libraries are also closed.
Simultaneously authorities in Canterbury have issued a state of emergency, to facilitate disaster response efforts.
Work Stoppages Amid Extreme Conditions
These intense gusts on Thursday coincide with numerous of school staff, physicians and civil servants are engaged in what has been described as a "significant labor action", calling for improved salaries and workplace environments.
Yet the intense climate has compelled them to change certain arrangements, with several external protests shifted to interior venues or called off.
Comparable winds are impacting the neighboring country, causing a heatwave to the remote areas.
Officials have declared fire bans for fear of wildfires.
