Severe gusts reaching velocities of approximately 155km/h (96mph) have caused approximately 90,000 households lacking electricity and compelled authorities to cancel in excess of 100 air travel services, as reported by local media.
The winds are impacting the entire South Island and southern parts of the northern region, per the national weather agency.
The nation's agencies have issued rare high-level wind alerts - the most severe warning - in core zones encompassing Wellington and Canterbury.
Residents have been advised to stay indoors, stay off roads, and prepare for further power and communication outages.
Widespread Impact and Emergency Response
The power cut seems to be impacting homes predominantly in the South Island, though agencies say that energy was being slowly brought back.
Local media have stated that in some places structures have suffered roof damage, and utility poles and vegetation have been toppled by the winds.
Across Wellington, a individual was lost his life after being hit by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a woman was blown onto approaching vehicles on a road by a strong gust of wind, in a event that was captured in a popular vehicle recording.
Air travel to and from the city have been suspended due to the gusts, whereas various routes and public facilities are also closed.
Simultaneously authorities in Canterbury have declared a state of emergency, to support emergency management operations.
Strike Action Amid Harsh Conditions
The powerful gales on Thursday occur while numerous of educators, medical professionals and government employees are engaged in what has been described as a "mega strike", calling for higher wages and enhanced employment terms.
However the intense climate has compelled them to change various scheduled activities, with some outdoor rallies moved indoors or abandoned.
Like conditions are also sweeping the neighboring country, causing a heatwave to the nation's interior regions.
Agencies have declared fire bans for fear of wildfires.
