Severe gusts hitting speeds of as high as 155km/h (96mph) have left approximately 90,000 households lacking electricity and led agencies to halt in excess of 100 flights, based on domestic outlets.
The winds are affecting the complete southern region and southern sections of the North Island, as stated by the country's meteorological service.
Officials in New Zealand have announced rare severe gust advisories - the top caution category - in core zones including Canterbury and Wellington.
Locals have been urged to stay indoors, stay off roads, and prepare for further utility disruptions.
Extensive Impact and Crisis Measures
The electricity loss appears to be affecting homes mostly in the South Island, while agencies say that power was being restored progressively.
Regional news have stated that in some places structures have suffered roof damage, and utility poles and vegetation have been toppled by the gales.
Across Wellington, a person was fatally injured after being struck by a tree branch at a frequent walking route on earlier this week.
Meanwhile in Wellington, a female was swept into approaching vehicles on a road by a intensive burst, in a moment that was captured in a viral dashcam video.
Flights in and out of the urban area have been halted because of the weather, and some roads and libraries are shut down.
Simultaneously local leaders have issued a crisis declaration, to facilitate emergency management operations.
Work Stoppages Amid Extreme Weather
These intense gusts on Thursday coincide with numerous of educators, medical professionals and government employees are engaged in what has been termed a "major walkout", requesting higher wages and enhanced employment terms.
But the intense climate has forced them to change certain arrangements, with several external protests shifted to interior venues or called off.
Similar gusts are also sweeping the neighboring country, causing a heatwave to the remote areas.
Officials have issued fire bans for concern about forest fires.