Powerful gusts attaining speeds of approximately 155km/h (96mph) have left approximately 90,000 households without power and compelled officials to call off more than 100 flights, as reported by local media.
These gusts are influencing the whole South Island and southern parts of the northern region, according to the national weather agency.
New Zealand authorities have announced rare high-level wind alerts - the most severe warning - in key areas encompassing these major districts.
People have been urged to stay indoors, avoid travel, and make arrangements for further electricity and network failures.
Extensive Destruction and Emergency Measures
This outage is primarily influencing homes predominantly in the South Island, while authorities report that power was being gradually reinstated.
Domestic outlets have indicated that in various locations roofs have been ripped off houses, while trees and electricity poles have been brought down by the winds.
In Wellington, a person was killed after being impacted by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a individual was pushed toward oncoming traffic on a road by a intensive burst, in a incident that was captured in a popular vehicle recording.
Aircraft services entering and leaving the city have been halted due to the winds, while some roads and libraries are not operating.
Meanwhile local leaders have announced a crisis declaration, to support recovery activities.
Strike Action During Extreme Conditions
The powerful gales on today occur while numerous of school staff, physicians and civil servants are engaged in what has been described as a "major walkout", calling for improved salaries and workplace environments.
Yet the extreme weather has compelled them to modify some of their plans, with some outdoor rallies moved indoors or cancelled.
Similar gusts are also sweeping Australia, causing a heatwave to the remote areas.
Authorities have declared fire bans for concern about wildfires.