Severe gusts attaining speeds of up to 155km/h (96mph) have left around 90,000 properties lacking electricity and led officials to halt more than 100 flights, as reported by local media.
These gusts are impacting the whole southern region and lower areas of the northern region, as stated by the country's meteorological service.
New Zealand authorities have announced rare red wind warnings - the top caution category - in key areas including Wellington and Canterbury.
People have been encouraged to stay indoors, avoid travel, and get ready for further utility disruptions.
Widespread Impact and Emergency Measures
This outage appears to be affecting households mostly in the southern region, though officials report that energy was being gradually reinstated.
Local media have indicated that in certain areas roofs have been ripped off houses, and utility poles and vegetation have been knocked down by the gusts.
Across Wellington, a man was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was swept into oncoming traffic on a street by a intensive burst, in a moment that was captured in a viral dashcam video.
Flights entering and leaving the city have been suspended because of the winds, whereas some roads and libraries are shut down.
Simultaneously authorities in Canterbury have announced a crisis declaration, to support disaster response efforts.
Strike Action Amid Severe Conditions
The wild winds on Thursday occur while tens of thousands of school staff, physicians and civil servants are engaged in what has been described as a "significant labor action", requesting improved salaries and workplace environments.
But the intense climate has pressured them to change some of their plans, with various open-air gatherings relocated inside or called off.
Like conditions are impacting the neighboring country, bringing a heatwave to the nation's interior regions.
Agencies have announced burning restrictions for fear of bushfires.
