Intense winds reaching speeds of approximately 155km/h (96mph) have left nearly 90,000 households without power and led agencies to halt over 100 flights, based on domestic outlets.
The gales are impacting the whole southern region and southern parts of the North Island, as stated by the country's meteorological service.
The nation's agencies have issued rare red wind warnings - the top caution category - in core zones such as Wellington and Canterbury.
Residents have been advised to stay indoors, refrain from journeys, and prepare for additional electricity and network failures.
Widespread Impact and Emergency Response
The electricity loss appears to be affecting homes mostly in the southern region, while officials report that the electricity supply was being gradually reinstated.
Domestic outlets have reported that in certain areas structures have suffered roof damage, while power lines and trees have been knocked down by the winds.
Across Wellington, a person was fatally injured after being hit by a falling limb at a popular trail walking spot on earlier this week.
Also in the capital, a female was pushed toward approaching vehicles on a thoroughfare by a strong gust of wind, in a incident that was recorded in a widely shared car camera footage.
Aircraft services in and out of the city have been halted due to the gusts, while various routes and public facilities are shut down.
Meanwhile Canterbury officials have declared a emergency situation, to assist emergency management operations.
Labor Protests During Extreme Weather
These intense gusts on today coincide with numerous of educators, medical professionals and government employees are participating in what has been termed a "significant labor action", requesting better pay and working conditions.
However the intense climate has pressured them to change certain arrangements, with some outdoor rallies moved indoors or called off.
Similar gusts are also sweeping the nearby nation, causing a high-temperature event to the country's outback.
Authorities have issued fire bans for fear of bushfires.
