NZ Historic Weather Events Catalogue

XML

August_2021_New_Zealand_Snow ( 2021-08-08 )

A cold front moved onto the south of the South Island overnight on 7th/8th August. Snow fell to low levels in many parts of the South Island. The trough moved away to the east overnight on 8th/9th August, allowing a strong and very cold southerly flow to cover New Zealand. Snow showers fell in the east of the South Island, and over the central North Island. Winds reached gale force in exposed places, especially about Cook Strait.

New Zealand

Snow / IceSnow / Ice at New Zealand
Comments:

CommentMetService SEVERE WEATHER at 10:02 am Saturday 07-Aug-2021 Heavy snow and severe gales for parts of central New Zealand. A rapidly deepening low is forecast to move across New Zealand from the west on Sunday, bringing heavy snow to low levels and severe gales to central areas. The heaviest snow is expected in northern Canterbury and southern Marlborough above 200 metres, and is likely to disrupt travel, damage trees and powerlines.Cold conditions may also cause stress for livestock.

CommentMetService SEVERE WEATHER WARNING at 10:12 am Sunday 08-Aug-2021 Heavy snow and severe gales for parts of central and northern New Zealand Updated to include Coromandel Peninsula in the Strong Wind Watch. A rapidly deepening low moves east across central New Zealand during today (Sunday) and early Monday. This low is expected to bring heavy snow to low levels and severe gale southerlies across the central and northern districts of the country. The heaviest snow is expected in northern Canterbury and southern Marlborough above 200 metres, and central and southern parts of the North Island which is likely to disrupt travel, damage trees and powerlines, and cause stress to livestock.

CommentMetService SEVERE WEATHER WARNING SEVERE WEATHER WARNING at 9:57 am Monday 09-Aug-2021 Heavy snow and severe gales for central and eastern parts of the North Island. A deep low to the east of the North Island is moving slowly away today, but continues to bring heavy snow to low levels and severe gale southerlies to central and eastern parts of the North Island this morning and afternoon.

CommentAvalanche Danger ratings were raised to high for Aoraki/Mt Cook, Two Thumbs, Craigieburn, Nelson Lakes, and Tongariro.

CommentA number of schools in the central North Island were closed due to the snow conditions and the power outages.

Snow / IceSnow / Ice at Arthur’s Pass
Map Location: -42.905834 171.549329
Comments:

Affected LifelineTwenty-five vehicles were stranded by the heavy snow on State Highway 73 at Arthur’s Pass.

Snow / IceSnow / Ice at Lewis Pass
Map Location: -42.379208 172.402555
Comments:

Affected LifelineLewis Pass was closed because of the heavy snow.

Snow / IceSnow / Ice at Waiouru
Map Location: -39.466728 175.685937
Comments:

Affected LifelineThe Desert Road was closed between Rangipo and Waiouru because of the heavy snow.

HighWind / Gust at Wellington
Map Location: -41.288550 174.776764
Comments:

Affected LifelineCook Strait ferry crossings on 9 August were cancelled due to the strong winds.

Affected LifelineStrong winds disrupted flights into and out of Wellington Airport.

References

Meteorological Society of New Zealand (Inc.), Newsletter 166, Spring 2021.
Meteorological Society of New Zealand (Inc.)
Headline: Highways closed as freezing southerly blast moves across NZ.
www.radionz.co.nz, 9 August 2021.
Headline: Cold front causes chaos, avalanche warnings across the South Island.
www.radionz.co.nz, 9 August 2021.

August_2021_New_Zealand_Snow ( 2021-08-08 )

A cold front moved onto the south of the South Island overnight on 7th/8th August. Snow fell to low levels in many parts of the South Island. The trough moved away to the east overnight on 8th/9th August, allowing a strong and very cold southerly flow to cover New Zealand. Snow showers fell in the east of the South Island, and over the central North Island. Winds reached gale force in exposed places, especially about Cook Strait.

New Zealand

Snow / IceSnow / Ice at New Zealand
Comments:

CommentMetService SEVERE WEATHER at 10:02 am Saturday 07-Aug-2021 Heavy snow and severe gales for parts of central New Zealand. A rapidly deepening low is forecast to move across New Zealand from the west on Sunday, bringing heavy snow to low levels and severe gales to central areas. The heaviest snow is expected in northern Canterbury and southern Marlborough above 200 metres, and is likely to disrupt travel, damage trees and powerlines.Cold conditions may also cause stress for livestock.

CommentMetService SEVERE WEATHER WARNING at 10:12 am Sunday 08-Aug-2021 Heavy snow and severe gales for parts of central and northern New Zealand Updated to include Coromandel Peninsula in the Strong Wind Watch. A rapidly deepening low moves east across central New Zealand during today (Sunday) and early Monday. This low is expected to bring heavy snow to low levels and severe gale southerlies across the central and northern districts of the country. The heaviest snow is expected in northern Canterbury and southern Marlborough above 200 metres, and central and southern parts of the North Island which is likely to disrupt travel, damage trees and powerlines, and cause stress to livestock.

CommentMetService SEVERE WEATHER WARNING SEVERE WEATHER WARNING at 9:57 am Monday 09-Aug-2021 Heavy snow and severe gales for central and eastern parts of the North Island. A deep low to the east of the North Island is moving slowly away today, but continues to bring heavy snow to low levels and severe gale southerlies to central and eastern parts of the North Island this morning and afternoon.

CommentAvalanche Danger ratings were raised to high for Aoraki/Mt Cook, Two Thumbs, Craigieburn, Nelson Lakes, and Tongariro.

CommentA number of schools in the central North Island were closed due to the snow conditions and the power outages.

Snow / IceSnow / Ice at Arthur’s Pass
Map Location: -42.905834 171.549329
Comments:

Affected LifelineTwenty-five vehicles were stranded by the heavy snow on State Highway 73 at Arthur’s Pass.

Snow / IceSnow / Ice at Lewis Pass
Map Location: -42.379208 172.402555
Comments:

Affected LifelineLewis Pass was closed because of the heavy snow.

Snow / IceSnow / Ice at Waiouru
Map Location: -39.466728 175.685937
Comments:

Affected LifelineThe Desert Road was closed between Rangipo and Waiouru because of the heavy snow.

HighWind / Gust at Wellington
Map Location: -41.288550 174.776764
Comments:

Affected LifelineCook Strait ferry crossings on 9 August were cancelled due to the strong winds.

Affected LifelineStrong winds disrupted flights into and out of Wellington Airport.

References

Meteorological Society of New Zealand (Inc.), Newsletter 166, Spring 2021.
Meteorological Society of New Zealand (Inc.)
Headline: Highways closed as freezing southerly blast moves across NZ.
www.radionz.co.nz, 9 August 2021.
Headline: Cold front causes chaos, avalanche warnings across the South Island.
www.radionz.co.nz, 9 August 2021.