Severe gusts hitting velocities of as high as 155km/h (96mph) have resulted in approximately 90,000 properties lacking electricity and forced authorities to cancel over 100 flights, as reported by local media.
The winds are affecting the whole southern region and lower areas of the northern region, per the national weather agency.
New Zealand authorities have released infrequent red wind warnings - the most severe warning - in key areas encompassing Wellington and Canterbury.
People have been encouraged to stay indoors, stay off roads, and prepare for additional utility disruptions.
Widespread Impact and Emergency Measures
The power cut appears to be affecting households mostly in the South Island, though authorities report that power was being restored progressively.
Regional news have reported that in some places homes have lost their roofs, and power lines and trees have been knocked down by the winds.
In Wellington, a man was fatally injured after being impacted by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a individual was blown onto moving cars on a thoroughfare by a strong gust of wind, in a moment that was filmed in a widely shared car camera footage.
Aircraft services in and out of the metropolis have been halted due to the winds, and certain highways and community centers are shut down.
Simultaneously local leaders have announced a crisis declaration, to facilitate emergency management operations.
Strike Action Amid Extreme Conditions
These intense gusts on this day occur while numerous of school staff, physicians and civil servants are engaged in what has been termed a "significant labor action", requesting better pay and working conditions.
Yet the severe conditions has forced them to change some of their plans, with various open-air gatherings moved indoors or abandoned.
Comparable winds are impacting the neighboring country, causing a period of extreme heat to the remote areas.
Agencies have declared flame prohibitions for fear of wildfires.
