Intense winds attaining velocities of approximately 155km/h (96mph) have left nearly 90,000 homes lacking electricity and forced officials to call off in excess of 100 flights, according to domestic outlets.
The gales are influencing the complete South Island and southern parts of the northern region, according to the weather forecasting body.
The nation's agencies have announced infrequent severe gust advisories - the highest alert level - in key areas including Canterbury and Wellington.
Residents have been advised to avoid going outside, avoid travel, and make arrangements for more utility disruptions.
Widespread Destruction and Crisis Measures
The power cut appears to be affecting households mostly in the southern region, although officials report that energy was being restored progressively.
Local media have stated that in some places homes have lost their roofs, whereas utility poles and vegetation have been toppled by the gusts.
Across Wellington, a man was fatally injured after being impacted by a wooden fragment at a well-known hiking path on earlier this week.
Additionally in the city, a female was pushed toward approaching vehicles on a road by a intensive burst, in a event that was filmed in a popular vehicle recording.
Air travel entering and leaving the metropolis have been cancelled as a result of the winds, while various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have announced a emergency situation, to assist recovery activities.
Work Stoppages Amid Extreme 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 "major walkout", calling for higher wages and enhanced employment terms.
But the extreme weather has compelled them to change certain arrangements, with various open-air gatherings relocated inside or called off.
Comparable winds are affecting Australia, causing a period of extreme heat to the nation's interior regions.
Authorities have announced burning restrictions for fear of wildfires.