Severe gusts attaining speeds of up to 155km/h (96mph) have resulted in nearly 90,000 homes lacking electricity and led authorities to halt more than 100 aircraft departures, based on domestic outlets.
The gales are influencing the entire South Island and southern sections of the North Island, according to the national weather agency.
New Zealand authorities have announced uncommon red wind warnings - the highest alert level - in core zones encompassing these major districts.
Locals have been urged to avoid going outside, stay off roads, and prepare for further electricity and network failures.
Widespread Damage and Crisis Measures
The electricity loss is primarily influencing homes predominantly in the southern region, while agencies say that power was being restored progressively.
Regional news have reported that in some places structures have suffered roof damage, whereas 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 frequent walking route on earlier this week.
Additionally in the city, a female was blown onto oncoming traffic on a street by a intensive burst, in a incident that was recorded in a popular vehicle recording.
Aircraft services to and from the urban area have been halted because of the winds, whereas some roads and libraries are shut down.
Simultaneously Canterbury officials have declared a emergency situation, to support emergency management operations.
Strike Action During Extreme Conditions
These intense gusts on Thursday coincide with numerous of educators, medical professionals and government employees are engaged in what has been called a "mega strike", calling for improved salaries and workplace environments.
Yet the extreme weather has compelled them to modify various scheduled activities, with some outdoor rallies relocated inside or called off.
Comparable winds are impacting Australia, ushering in a high-temperature event to the country's outback.
Authorities have declared fire bans for apprehension regarding wildfires.