Intense winds hitting speeds of up to 155km/h (96mph) have left around 90,000 properties lacking electricity and led authorities to cancel more than 100 air travel services, based on regional news sources.
The winds are affecting the complete South Island and southern parts of the North Island, per the national weather agency.
Officials in New Zealand have issued rare red wind warnings - the most severe warning - in key areas encompassing Wellington and Canterbury.
Locals have been advised to stay indoors, avoid travel, and prepare for additional electricity and network failures.
Extensive Damage and Emergency Measures
The power cut appears to be affecting homes predominantly in the South Island, while officials say that energy was being restored progressively.
Regional news have indicated that in some places structures have suffered roof damage, while utility poles and vegetation have been brought down by the gales.
Within the capital, a man was fatally injured after being struck 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 thoroughfare by a intensive burst, in a event that was recorded in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been cancelled due to the gusts, while some roads and libraries are also closed.
Meanwhile local leaders have declared a state of emergency, to support disaster response efforts.
Work Stoppages Alongside Extreme Weather
These intense gusts on Thursday coincide with tens of thousands of educators, medical professionals and government employees take part in what has been described as a "mega strike", demanding better pay and working conditions.
However the intense climate has compelled them to alter certain arrangements, with some outdoor rallies moved indoors or abandoned.
Like conditions are also sweeping the neighboring country, causing a period of extreme heat to the nation's interior regions.
Officials have declared burning restrictions for apprehension regarding forest fires.
