Powerful gusts hitting velocities of approximately 155km/h (96mph) have caused nearly 90,000 homes experiencing outages and forced agencies to halt more than 100 aircraft departures, based on domestic outlets.
The gales are impacting the whole South Island and southern parts of the North Island, according to the national weather agency.
New Zealand authorities have issued uncommon red wind warnings - the highest alert level - in key areas including Canterbury and Wellington.
Residents have been advised to avoid going outside, stay off roads, and make arrangements for more utility disruptions.
Widespread Destruction and Crisis Measures
This outage seems to be impacting residences mainly in the South Island, though agencies say that the electricity supply was being gradually reinstated.
Local media have stated that in various locations structures have suffered roof damage, while utility poles and vegetation have been brought down by the gales.
In Wellington, a individual was fatally injured after being impacted by a tree branch at a frequent walking route on earlier this week.
Additionally in the city, a individual was pushed toward approaching vehicles on a thoroughfare by a intensive burst, in a event that was captured in a popular vehicle recording.
Aircraft services in and out of the city have been cancelled due to the gusts, while certain highways and community centers are not operating.
Simultaneously local leaders have announced a emergency situation, to support emergency management operations.
Strike Action Amid Extreme Conditions
The wild winds on this day occur while many of school staff, physicians and civil servants are participating in what has been described as a "major walkout", demanding higher wages and enhanced employment terms.
Yet the severe conditions has compelled them to change some of their plans, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are affecting the neighboring country, ushering in a period of extreme heat to the remote areas.
Authorities have issued burning restrictions for fear of wildfires.
