Powerful gales reaching velocities of up to 155km/h (96mph) have left approximately 90,000 properties lacking electricity and compelled agencies to cancel more than 100 flights, based on local media.
These gusts are affecting the entire South Island and southern parts of the northern region, according to the weather forecasting body.
Officials in New Zealand have announced uncommon high-level wind alerts - the top caution category - in key areas encompassing Wellington and Canterbury.
Locals have been encouraged to stay indoors, stay off roads, and make arrangements for additional utility disruptions.
Widespread Impact and Crisis Response
The power cut appears to be affecting homes predominantly in the southern region, though agencies state that the electricity supply was being slowly brought back.
Domestic outlets have reported that in various locations structures have suffered roof damage, whereas utility poles and vegetation have been toppled by the gusts.
Within the capital, a individual was killed after being impacted by a wooden fragment at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a street by a intensive burst, in a event that was recorded in a viral dashcam video.
Air travel in and out of the city have been halted because of the weather, whereas some roads and libraries are not operating.
Simultaneously local leaders have declared a state of emergency, to facilitate emergency management operations.
Strike Action During Severe Weather
The powerful gales on Thursday coincide with many of school staff, physicians and civil servants are participating in what has been described as a "major walkout", calling for higher wages and enhanced employment terms.
Yet the extreme weather has compelled them to change certain arrangements, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are affecting the neighboring country, causing a heatwave to the remote areas.
Authorities have declared burning restrictions for concern about forest fires.
