Powerful winds reaching velocities of approximately 155km/h (96mph) have resulted in around 90,000 households without power and compelled agencies to halt more than 100 air travel services, as reported by domestic outlets.
These gusts are impacting the whole South Island and southern parts of the North Island, as stated by the national weather agency.
Officials in New Zealand have released infrequent red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
People have been urged to stay indoors, stay off roads, and prepare for more power and communication outages.
Broad Damage and Emergency Measures
This outage seems to be impacting residences mainly in the South Island, though agencies say that the electricity supply was being gradually reinstated.
Domestic outlets have stated that in certain areas structures have suffered roof damage, whereas utility poles and vegetation have been toppled by the winds.
Across Wellington, a individual was fatally injured after being impacted by a falling limb at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was blown onto approaching vehicles on a thoroughfare by a powerful blast, in a event that was captured in a viral dashcam video.
Aircraft services entering and leaving the metropolis have been halted because of the winds, and various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have announced a crisis declaration, to facilitate recovery activities.
Labor Protests During Harsh Conditions
These intense gusts on this day coincide with many of educators, medical professionals and government employees are engaged in what has been called a "mega strike", demanding improved salaries and workplace environments.
But the extreme weather has pressured them to modify various scheduled activities, with various open-air gatherings moved indoors or called off.
Similar gusts are also sweeping the nearby nation, causing a heatwave to the remote areas.
Agencies have announced burning restrictions for concern about bushfires.