Intense gales hitting speeds of up to 155km/h (96mph) have left approximately 90,000 homes without power and compelled agencies to cancel more than 100 air travel services, based on local media.
The gales are influencing the whole southern region and southern sections of the northern region, according to the weather forecasting body.
Officials in New Zealand have issued uncommon severe gust advisories - the top caution category - in central regions including Canterbury and Wellington.
People have been advised to avoid going outside, refrain from journeys, and make arrangements for additional power and communication outages.
Widespread Impact and Crisis Measures
This outage seems to be impacting households mostly in the southern region, though officials state that power was being restored progressively.
Regional news have indicated that in some places roofs have been ripped off houses, while utility poles and vegetation have been brought down by the winds.
Within the capital, a man was fatally injured after being impacted by a tree branch at a popular trail walking spot on earlier this week.
Also in the capital, a woman was pushed toward oncoming traffic on a street by a intensive burst, in a incident that was filmed in a viral dashcam video.
Air travel entering and leaving the city have been halted due to the weather, while some roads and libraries are also closed.
Simultaneously authorities in Canterbury have issued a crisis declaration, to facilitate emergency management operations.
Strike Action Alongside Harsh Conditions
These intense gusts on this day come as tens of thousands of school staff, physicians and civil servants are engaged in what has been termed a "major walkout", demanding improved salaries and workplace environments.
But the intense climate has pressured them to change some of their plans, with several external protests shifted to interior venues or called off.
Like conditions are affecting the neighboring country, bringing a heatwave to the country's outback.
Agencies have declared flame prohibitions for fear of bushfires.
