Severe winds attaining speeds of as high as 155km/h (96mph) have caused nearly 90,000 homes experiencing outages and forced authorities to halt more than 100 flights, based on regional news sources.
These gusts are affecting the entire South Island and southern parts of the northern region, per the country's meteorological service.
New Zealand authorities have released infrequent high-level wind alerts - the highest alert level - in key areas encompassing Wellington and Canterbury.
People have been encouraged to remain inside, avoid travel, and prepare for additional electricity and network failures.
Broad Impact and Emergency Response
The power cut appears to be affecting residences mostly in the South Island, although agencies report that power was being restored progressively.
Local media have stated that in certain areas structures have suffered roof damage, and trees and electricity poles have been toppled by the winds.
In Wellington, a person was fatally injured after being struck by a falling limb at a well-known hiking path on earlier this week.
Meanwhile in Wellington, a individual was blown onto approaching vehicles on a street by a intensive burst, in a event that was recorded in a widely shared car camera footage.
Flights to and from the metropolis have been halted because of the gusts, and various routes and public facilities are not operating.
At the same time Canterbury officials have declared a state of emergency, to support recovery activities.
Strike Action Amid Harsh Weather
These intense gusts on this day occur while numerous of school staff, physicians and civil servants are participating in what has been termed a "mega strike", demanding improved salaries and workplace environments.
But the intense climate has compelled them to modify some of their plans, with various open-air gatherings moved indoors or abandoned.
Like conditions are impacting Australia, causing a high-temperature event to the nation's interior regions.
Authorities have declared flame prohibitions for fear of bushfires.