NZ Historic Weather Events Catalogue

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April 2018 New Zealand Storm ( 2018-04-10 )

A low pressure system crossed New Zealand, bringing severe gales to the North Island and upper South Island. Auckland was particularly badly affected. Two tornadoes (one at Rahotu in Taranaki, and the other at National Park) were reported.

New Zealand

High Wind GustsHigh Wind / Gust at New Zealand
Duration:   2  days - From the 10th to 11th of April.
Comments:

Insurance ClaimInsurance claims totalled $74.4 million.

CommentMetService SEVERE WEATHER WARNING 8:10 pm Monday 09-Apr-2018. Heavy Snow for Canterbury High Country and Kaikoura Ranges. Severe gales for parts of the upper South Island and North Island.

CommentMetService SEVERE WEATHER WARNING 3:53 pm Tuesday 10-Apr-2018. Heavy Snow for the Kaikoura Ranges, easing. Heavy rain for Taranaki, Taihape, Whanganui and the Tararua Ranges. Severe gales for parts of the upper South Island and North Island.

CommentMetService SEVERE WEATHER WARNING 9:06 am Wednesday 11-Apr-2018. Heavy rain for parts of Taranaki, Whanganui and Hawkes Bay, easing later today.

Auckland

High Wind GustsHigh Wind / Gust at Auckland City
Map Location: -36.852397 174.762337
Comments:

Peak Wind SpeedWind gusts reached hurricane force overnight on 10/11 April. Gusts reached 100-150km/h across central Auckland, peaking at 213km/h at Manukau Heads.

Affected LifelinePower was out to about 120,000 homes in Auckland, after sustained winds of 100km/h battered the area.

Affected LifelineAll flights into Auckland Airport were diverted because of wind-blown debris on the main runway.

Property DamageTrees had fallen on to homes and cars across Auckland.

Affected LifelineWidespread power outages meant 50 Spark cellphone towers around the country were offline, and more were running on battery power. Vodafone had about 70 sites that were offline. The majority of the affected cellphone towers were in the greater Auckland area.

CommentA number of West Auckland schools were closed.

CommentCornwall Park was closed as six large trees had been uprooted.

CommentAuckland Zoo was closed.

Taranaki

TornadoTornado at Rahotu
Map Location: -39.325994 173.805636
Comments:

Property DamageAbout a dozen homes in Rahotu lost their roofs. Seven families had to be re-located. Farm buildings were destroyed and power lines came down.

CommentAt least nine local schools were closed due to the weather.

High Wind GustsHigh Wind / Gust at Taranaki
Comments:

Affected LifelineAbout 12,000 properties were affected by power cuts.

CommentAt least 10 flights into New Plymouth airport were cancelled due to the weather.

Manawatu-Wanganui

TornadoTornado at National Park
Map Location: -39.174272 175.403579
Comments:

Property Damage Eleven homes were deemed to be uninhabitable after a tornado ripped off roofs and severely damaged them. Seven properties were red-stickered and six properties were yellow-stickered. Trees and power lines were also brought down.

Comment A Welfare Centre was set up at the local primary school.

Snow / IceSnow / Ice at Desert Road
Map Location: -39.300090 175.738590
Comments:

Affected Lifeline Snow closed the Desert Road, between Rangipo and Waiouru.

West Coast

High Wind GustsHigh Wind / Gust at Karamea
Map Location: -41.245488 172.103638
Comments:

Affected LifelineAbout 315 households in Karamea and Little Wanganui lost power due to fallen trees in the area.

High Wind GustsHigh Wind / Gust at Westport
Map Location: -41.750212 171.582563
Comments:

Property DamageThe winds lifted roofs in Westport and Greymouth.

Affected LifelineState Highway 67, between Westport and Karamea was closed.

CommentThree camper vans and one caravan were overturned by the strong winds near Hokitika, Mount Hercules, Harihari and Westport.

Wellington

Maritime / CoastalMaritime / Coastal at Cook Strait
Map Location: -41.247772 174.473756
Comments:

Affected Lifeline All InterIslander ferries were cancelled due to high seas in Cook Strait.

References

Meteorological Society of New Zealand (Inc.), Newsletter 153, Winter 2018
Insurance Council of New Zealand (https://www.icnz.org.nz/natural-disasters/cost-of-natural-disasters/)
Headline: Tornadoes severely damage North Island homes
www.radionz.co.nz, 10 April 2018.
Headline: Region by region: What you need to know about the storm.
www.radionz.co.nz, 10 April 2018.
Headline: Powerful winds causing 'chaos' in Akl, thousands without power.
www.radionz.co.nz, 11 April 2018.
Headline: More than 100,000 Auckland homes without power, some may be cut off for days
www.stuff.co.nz, 11 April 2018.

April 2018 New Zealand Storm ( 2018-04-10 )

A low pressure system crossed New Zealand, bringing severe gales to the North Island and upper South Island. Auckland was particularly badly affected. Two tornadoes (one at Rahotu in Taranaki, and the other at National Park) were reported.

New Zealand

High Wind GustsHigh Wind / Gust at New Zealand
Duration:   2  days - From the 10th to 11th of April.
Comments:

Insurance ClaimInsurance claims totalled $74.4 million.

CommentMetService SEVERE WEATHER WARNING 8:10 pm Monday 09-Apr-2018. Heavy Snow for Canterbury High Country and Kaikoura Ranges. Severe gales for parts of the upper South Island and North Island.

CommentMetService SEVERE WEATHER WARNING 3:53 pm Tuesday 10-Apr-2018. Heavy Snow for the Kaikoura Ranges, easing. Heavy rain for Taranaki, Taihape, Whanganui and the Tararua Ranges. Severe gales for parts of the upper South Island and North Island.

CommentMetService SEVERE WEATHER WARNING 9:06 am Wednesday 11-Apr-2018. Heavy rain for parts of Taranaki, Whanganui and Hawkes Bay, easing later today.

Auckland

High Wind GustsHigh Wind / Gust at Auckland City
Map Location: -36.852397 174.762337
Comments:

Peak Wind SpeedWind gusts reached hurricane force overnight on 10/11 April. Gusts reached 100-150km/h across central Auckland, peaking at 213km/h at Manukau Heads.

Affected LifelinePower was out to about 120,000 homes in Auckland, after sustained winds of 100km/h battered the area.

Affected LifelineAll flights into Auckland Airport were diverted because of wind-blown debris on the main runway.

Property DamageTrees had fallen on to homes and cars across Auckland.

Affected LifelineWidespread power outages meant 50 Spark cellphone towers around the country were offline, and more were running on battery power. Vodafone had about 70 sites that were offline. The majority of the affected cellphone towers were in the greater Auckland area.

CommentA number of West Auckland schools were closed.

CommentCornwall Park was closed as six large trees had been uprooted.

CommentAuckland Zoo was closed.

Taranaki

TornadoTornado at Rahotu
Map Location: -39.325994 173.805636
Comments:

Property DamageAbout a dozen homes in Rahotu lost their roofs. Seven families had to be re-located. Farm buildings were destroyed and power lines came down.

CommentAt least nine local schools were closed due to the weather.

High Wind GustsHigh Wind / Gust at Taranaki
Comments:

Affected LifelineAbout 12,000 properties were affected by power cuts.

CommentAt least 10 flights into New Plymouth airport were cancelled due to the weather.

Manawatu-Wanganui

TornadoTornado at National Park
Map Location: -39.174272 175.403579
Comments:

Property Damage Eleven homes were deemed to be uninhabitable after a tornado ripped off roofs and severely damaged them. Seven properties were red-stickered and six properties were yellow-stickered. Trees and power lines were also brought down.

Comment A Welfare Centre was set up at the local primary school.

Snow / IceSnow / Ice at Desert Road
Map Location: -39.300090 175.738590
Comments:

Affected Lifeline Snow closed the Desert Road, between Rangipo and Waiouru.

West Coast

High Wind GustsHigh Wind / Gust at Karamea
Map Location: -41.245488 172.103638
Comments:

Affected LifelineAbout 315 households in Karamea and Little Wanganui lost power due to fallen trees in the area.

High Wind GustsHigh Wind / Gust at Westport
Map Location: -41.750212 171.582563
Comments:

Property DamageThe winds lifted roofs in Westport and Greymouth.

Affected LifelineState Highway 67, between Westport and Karamea was closed.

CommentThree camper vans and one caravan were overturned by the strong winds near Hokitika, Mount Hercules, Harihari and Westport.

Wellington

Maritime / CoastalMaritime / Coastal at Cook Strait
Map Location: -41.247772 174.473756
Comments:

Affected Lifeline All InterIslander ferries were cancelled due to high seas in Cook Strait.

References

Meteorological Society of New Zealand (Inc.), Newsletter 153, Winter 2018
Insurance Council of New Zealand (https://www.icnz.org.nz/natural-disasters/cost-of-natural-disasters/)
Headline: Tornadoes severely damage North Island homes
www.radionz.co.nz, 10 April 2018.
Headline: Region by region: What you need to know about the storm.
www.radionz.co.nz, 10 April 2018.
Headline: Powerful winds causing 'chaos' in Akl, thousands without power.
www.radionz.co.nz, 11 April 2018.
Headline: More than 100,000 Auckland homes without power, some may be cut off for days
www.stuff.co.nz, 11 April 2018.