Powerful gales reaching velocities of approximately 155km/h (96mph) have resulted in approximately 90,000 properties without power and forced authorities to cancel over 100 flights, according to regional news sources.
These gusts are impacting the entire South Island and southern parts of the North Island, per the national weather agency.
The nation's agencies have issued infrequent high-level wind alerts - the most severe warning - in core zones including Canterbury and Wellington.
Residents have been urged to stay indoors, refrain from journeys, and get ready for additional power and communication outages.
Broad Destruction and Crisis Response
The electricity loss appears to be affecting residences mainly in the southern region, although authorities state that the electricity supply was being gradually reinstated.
Local media have indicated that in various locations structures have suffered roof damage, whereas utility poles and vegetation have been knocked down by the winds.
Within the capital, a person was fatally injured after being struck by a falling limb at a well-known hiking path on earlier this week.
Additionally in the city, a female was pushed toward approaching vehicles on a road by a intensive burst, in a moment that was captured in a popular vehicle recording.
Flights entering and leaving the urban area have been halted due to the gusts, whereas some roads and libraries are shut down.
Meanwhile Canterbury officials have announced a state of emergency, to facilitate disaster response efforts.
Strike Action Amid Harsh Conditions
The powerful gales on this day come as numerous of teachers, doctors and other public workers take part in what has been termed a "significant labor action", calling for higher wages and enhanced employment terms.
But the intense climate has pressured them to change some of their plans, with various open-air gatherings shifted to interior venues or cancelled.
Like conditions are also sweeping Australia, ushering in a period of extreme heat to the nation's interior regions.
Officials have declared fire bans for concern about wildfires.