Severe gusts attaining velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and forced authorities to cancel more than 100 aircraft departures, as reported by domestic outlets.
These gusts are affecting the complete South Island and southern parts of the North Island, as stated by the national weather agency.
The nation's agencies have issued uncommon red wind warnings - the highest alert level - in key areas such as these major districts.
Residents have been encouraged to stay indoors, refrain from journeys, and make arrangements for additional utility disruptions.
Broad Impact and Crisis Response
This outage appears to be affecting homes mainly in the South Island, though agencies say that energy was being gradually reinstated.
Domestic outlets have stated that in various locations structures have suffered roof damage, and power lines and trees have been brought down by the winds.
In Wellington, a individual was lost his life after being hit by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a female was swept into oncoming traffic on a street by a strong gust of wind, in a event that was recorded in a popular vehicle recording.
Air travel to and from the metropolis have been cancelled because of the winds, whereas some roads and libraries are not operating.
At the same time local leaders have declared a state of emergency, to facilitate emergency management operations.
Work Stoppages Amid Extreme Conditions
The powerful gales on today coincide with many of school staff, physicians and civil servants are engaged in what has been termed a "major walkout", calling for higher wages and enhanced employment terms.
But the extreme weather has forced them to alter certain arrangements, with various open-air gatherings moved indoors or cancelled.
Like conditions are impacting Australia, causing a heatwave to the country's outback.
Officials have declared burning restrictions for fear of wildfires.