Intense gusts reaching speeds of as high as 155km/h (96mph) have left nearly 90,000 households without power and led officials to cancel more than 100 aircraft departures, based on regional news sources.
The gales are influencing the whole South Island and lower areas of the North Island, as stated by the country's meteorological service.
The nation's agencies have issued uncommon high-level wind alerts - the highest alert level - in core zones including these major districts.
Locals have been encouraged to avoid going outside, stay off roads, and prepare for further power and communication outages.
Broad Impact and Crisis Measures
The electricity loss is primarily influencing residences mostly in the South Island, while agencies report that the electricity supply was being restored progressively.
Local media have reported that in various locations homes have lost their roofs, while power lines and trees have been knocked down by the gusts.
Across Wellington, a person was fatally injured after being struck by a tree branch at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a thoroughfare by a strong gust of wind, in a moment that was recorded in a viral dashcam video.
Air travel in and out of the metropolis have been halted because of the winds, while various routes and public facilities are shut down.
Meanwhile authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Work Stoppages During Extreme Conditions
The powerful gales on today come as many of educators, medical professionals and government employees are participating in what has been termed a "major walkout", calling for higher wages and enhanced employment terms.
But the extreme weather has pressured them to alter certain arrangements, with some outdoor rallies moved indoors or abandoned.
Similar gusts are affecting the neighboring country, bringing a heatwave to the remote areas.
Officials have issued burning restrictions for fear of wildfires.
