Intense gusts attaining velocities of approximately 155km/h (96mph) have left approximately 90,000 homes without power and forced agencies to call off in excess of 100 aircraft departures, as reported by regional news sources.
The gales are influencing the entire southern region and southern parts of the North Island, per the weather forecasting body.
The nation's agencies have issued rare high-level wind alerts - the highest alert level - in central regions encompassing Canterbury and Wellington.
People have been urged to remain inside, stay off roads, and prepare for more utility disruptions.
Extensive Impact and Crisis Response
The electricity loss appears to be affecting residences predominantly in the South Island, while officials report that energy was being gradually reinstated.
Local media have indicated that in certain areas structures have suffered roof damage, and power lines and trees have been toppled by the gusts.
Across Wellington, a man was fatally injured after being impacted by a falling limb at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a road by a strong gust of wind, in a event that was captured in a viral dashcam video.
Flights to and from the city have been halted as a result of the weather, whereas various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have issued a emergency situation, to assist recovery activities.
Strike Action During Extreme Conditions
The powerful gales on today occur while many of educators, medical professionals and government employees are engaged in what has been termed a "major walkout", demanding improved salaries and workplace environments.
But the extreme weather has pressured them to change certain arrangements, with several external protests moved indoors or cancelled.
Similar gusts are also sweeping the nearby nation, causing a high-temperature event to the nation's interior regions.
Officials have issued fire bans for fear of wildfires.
