Powerful gusts attaining velocities of up to 155km/h (96mph) have left nearly 90,000 households without power and forced authorities to call off more than 100 air travel services, according to domestic outlets.
The gales are impacting the whole southern region and lower areas of the North Island, as stated by the weather forecasting body.
The nation's agencies have announced rare red wind warnings - the top caution category - in central regions including Canterbury and Wellington.
Residents have been urged to stay indoors, refrain from journeys, and prepare for additional utility disruptions.
Broad Damage and Emergency Response
The electricity loss appears to be affecting homes predominantly in the South Island, while agencies report that the electricity supply was being gradually reinstated.
Regional news have stated that in some places structures have suffered roof damage, while utility poles and vegetation have been toppled by the winds.
In Wellington, a man was fatally injured after being hit by a falling limb at a frequent walking route on Tuesday.
Also in the capital, a woman was swept into moving cars on a thoroughfare by a strong gust of wind, in a moment that was captured in a popular vehicle recording.
Air travel in and out of the metropolis have been halted as a result of the weather, whereas certain highways and community centers are not operating.
Simultaneously authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Labor Protests Amid Extreme Conditions
The wild winds on this day occur while numerous of educators, medical professionals and government employees are engaged in what has been termed a "mega strike", calling for better pay and working conditions.
But the severe conditions has forced them to alter certain arrangements, with several external protests moved indoors or abandoned.
Like conditions are also sweeping the nearby nation, bringing a period of extreme heat to the country's outback.
Officials have declared flame prohibitions for fear of wildfires.
