Severe gusts hitting velocities of up to 155km/h (96mph) have resulted in around 90,000 households lacking electricity and compelled agencies to call off more than 100 aircraft departures, based on domestic outlets.
The gales are impacting the whole southern region and southern sections of the northern region, according to the national weather agency.
New Zealand authorities have announced infrequent severe gust advisories - the highest alert level - in central regions such as Canterbury and Wellington.
Residents have been urged to avoid going outside, stay off roads, and make arrangements for further power and communication outages.
Extensive Destruction and Crisis Measures
The electricity loss appears to be affecting homes predominantly in the South Island, although authorities state that energy was being restored progressively.
Regional news have reported that in various locations structures have suffered roof damage, while utility poles and vegetation have been toppled by the gales.
Within the capital, a man was killed after being hit by a tree branch at a frequent walking route on Tuesday.
Additionally in the city, a woman was swept into oncoming traffic on a street by a strong gust of wind, in a event that was captured in a popular vehicle recording.
Flights in and out of the metropolis have been halted as a result of the winds, whereas some roads and libraries are shut down.
Simultaneously authorities in Canterbury have announced a state of emergency, to assist recovery activities.
Labor Protests During Harsh Conditions
The powerful gales on Thursday occur while numerous of educators, medical professionals and government employees are participating in what has been termed a "mega strike", calling for improved salaries and workplace environments.
However the extreme weather has compelled them to modify some of their plans, with several external protests moved indoors or abandoned.
Comparable winds are affecting the neighboring country, bringing a period of extreme heat to the remote areas.
Authorities have declared fire bans for apprehension regarding wildfires.