Intense winds reaching velocities of up to 155km/h (96mph) have caused around 90,000 households experiencing outages and forced officials to call off over 100 aircraft departures, according to local media.
The gales are impacting the complete southern region and lower areas of the northern region, per the country's meteorological service.
New Zealand authorities have announced uncommon red wind warnings - the highest alert level - in key areas including these major districts.
People have been urged to stay indoors, avoid travel, and make arrangements for additional power and communication outages.
Widespread Impact and Emergency Measures
The power cut seems to be impacting homes mainly in the southern region, although agencies say that power was being slowly brought back.
Domestic outlets have reported that in various locations homes have lost their roofs, and power lines and trees have been toppled by the gales.
Across Wellington, a person was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was swept into moving cars on a road by a intensive burst, in a moment that was filmed in a viral dashcam video.
Flights entering and leaving the city have been halted as a result of the winds, and various routes and public facilities are shut down.
At the same time authorities in Canterbury have issued a crisis declaration, to facilitate emergency management operations.
Labor Protests Amid Severe Weather
The wild winds on today coincide with tens of thousands of educators, medical professionals and government employees take part in what has been called a "mega strike", demanding better pay and working conditions.
Yet the intense climate has forced them to alter certain arrangements, with several external protests shifted to interior venues or called off.
Similar gusts are impacting the neighboring country, causing a period of extreme heat to the remote areas.
Authorities have issued flame prohibitions for concern about forest fires.