Intense winds reaching speeds of up to 155km/h (96mph) have resulted in nearly 90,000 homes lacking electricity and led authorities to call off more than 100 flights, as reported by domestic outlets.
The gales are impacting the whole South Island and southern parts of the northern region, as stated by the country's meteorological service.
The nation's agencies have released infrequent high-level wind alerts - the highest alert level - in core zones such as these major districts.
Residents have been urged to stay indoors, refrain from journeys, and prepare for further power and communication outages.
Broad Damage and Emergency Response
The electricity loss appears to be affecting households predominantly in the South Island, though authorities report that the electricity supply was being slowly brought back.
Domestic outlets have reported that in various locations homes have lost their roofs, while utility poles and vegetation have been knocked down by the gusts.
Within the capital, a person was killed after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was blown onto moving cars on a road by a strong gust of wind, in a moment that was recorded in a popular vehicle recording.
Aircraft services to and from the city have been suspended due to the gusts, and certain highways and community centers are not operating.
Simultaneously authorities in Canterbury have announced a state of emergency, to facilitate disaster response efforts.
Strike Action During Harsh Weather
These intense gusts on Thursday occur while many of school staff, physicians and civil servants are participating in what has been termed a "mega strike", requesting improved salaries and workplace environments.
But the extreme weather has compelled them to change certain arrangements, with some outdoor rallies relocated inside or called off.
Similar gusts are impacting the neighboring country, bringing a period of extreme heat to the nation's interior regions.
Authorities have issued burning restrictions for apprehension regarding bushfires.
