NZ Historic Weather Events Catalogue

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March 2017 North Island Heavy Rain and Flooding ( 2017-03-07 )

Very heavy rain fell over many areas of the North Island during the period 7-13 March, which resulted in severe flooding. A slow-moving depression remained in the North Tasman Sea for most of this period. Fronts on the eastern edge of the depression brought the rain.

North Island

Multi HazardMulti Hazard at North Island
Duration:   7  days - From the 7th to 13th of March.
Comments:

Insurance ClaimInsurance claims totalled $61.7 million.

CommentMetService SEVERE WEATHER WARNING 9:31am 07-Mar-2017. HEAVY RAIN FOR THE CENTRAL AND UPPER NORTH ISLAND. A low and associated fronts over the Tasman Sea are moving southeastwards, and will bring rain to much of the North Island. The heaviest falls are likely to be in Waikato, Coromandel Peninsula and Bay of Plenty, and a Heavy Rain Warning is now in place for these areas. Up to 150mm of rain could accumulate in a relatively brief period, with localised thundery downpours. Please note, that a Watch is in force for significant heavy rain for Northland, Auckland, Waitomo, Taranaki, Taumarunui, Taupo, Gisborne and northern Hawkes Bay.

CommentMetService SEVERE WEATHER WARNING 7:49am 08-Mar-2017. HEAVY RAIN FOR THE CENTRAL AND UPPER NORTH ISLAND. Updated Wednesday morning to include Auckland in the heavy rain Warning and update the Warning for Coromandel Peninsula. A low and associated fronts over the Tasman Sea are moving southeastwards, has brought heavy rain to the northeast of the North Island last night. Rain should continue today. The heaviest falls are likely to be in Auckland, Great Barrier Island, Coromandel Peninsula, Bay of Plenty and Gisborne north of Tolaga Bay.

CommentMetService SEVERE WEATHER WARNING 8:57pm 08-Mar-2017. HEAVY RAIN FOR NORTHLAND AND THE COROMANDEL PENINSULA. A low over the Tasman Sea extends a slow-moving trough over northern New Zealand. Widespread heavy rain over northern and eastern areas has eased in most places, however further heavy rain is expected over Northland and the Coromandel Peninsula.

CommentMetService SEVERE WEATHER WARNING 8:04pm 09-Mar-2017. HEAVY RAIN FOR NORTHLAND, COROMANDEL PENINSULA AND BAY OF PLENTY.

CommentMetService SEVERE WEATHER WARNING 8:55am 10-Mar-2017. HEAVY RAIN FOR NORTHLAND, AUCKLAND, COROMANDEL PENINSULA, BAY OF PLENTY AND NORTHWEST NELSON

CommentMetService SEVERE WEATHER WARNING 6:21am 12-Mar-2017. HEAVY RAIN FOR TARANAKI, HOROWHENUA KAPITI COAST, WELLINGTON, NELSON AND NORTHERN MARLBOROUGH, INCLUDING THE SOUNDS. (WARNING UPDATED TO ADD TARANAKI, HOROWHENUA KAPITI COAST AND WELLINGTON)

CommentMetService SEVERE WEATHER WARNING 5:14pm 12-Mar-2017. HEAVY RAIN ABOUT EASTERN BAY OF PLENTY EASING THIS EVENING.

Waikato

Multi HazardMulti Hazard at Coromandel Peninsula
Comments:

Physical CharacteristicThe torrential rain which fell in east Coromandel on 7 and 8 March was about a one-in-100-year event. Some areas received more rain in two days than normally fell in the entire month.

CommentWater supplies in the Coromandel were affected by the power outages and heavy rain, which had put the pump stations at some wastewater treatment plants under pressure. The Thames-Coromandel District Council asked people not to flush toilets if they could help it in Tairua, Pauanui, Onemana and Whangamata because the sewerage was not working.

CommentSevere flooding hit the Coromandel Peninsula, where many roads across the peninsula were impassable. The flooding cut off access to the entire Coromandel Peninsula.

CommentSome Whiritoa residents were evacuated to the local surf club on 8 March. The Whiritoa Fire Brigade rescued a motorist whose car had been damaged by floodwaters.

CommentOne-third of the shops in Thames township were closed on 8 March, as workers were unable to reach their workplaces due to flooding and landslips.

Physical Characteristic The Waikato Regional Council recorded a 24-hour rainfall of 407mm at the Pinnacles measuring station in the Coromandel ranges, midway between Thames and Tairua.

Damage Twenty schools and early education centres were closed in the Coromandel/Thames region on 8 March.

Physical Characteristic 130mm of rain fell in 24 hours on the Coromandel Peninsula on 10-11 March.

Multi HazardMulti Hazard at Whangamata
Map Location: -37.209197 175.878206
Comments:

Physical CharacteristicWhangamata had 259.8 millimetres of rain in less than 36 hours on 7-8 March.

Evacuees 31 people, who were mostly school children evacuated from a Whangamata school camp, spent the night of 8 March in a Coromandel Peninsula evacuation centre, after torrential rain overnight left the area effectively cut off. The head of Civil Defence said the flooding in the region was the worst in more than a decade.

Comment Five homes in Whangamata and two in Onemana sustained significant damage from large landslides.

CommentShops and banks at Whangamata were closed due to flooding on 8 March. There were also phone outages and limited petrol at Whangamata.

FloodingFlooding at Kaiaua
Map Location: -37.1122 175.2964
Comments:

Evacuees10 houses at Kaiaua had floodwaters go through them on 7-8 March. The residents self-evacuated.

FloodingFlooding at Waikato
Comments:

CommentHomes in Te Awamutu and Frankton in Hamilton were flooded on 11 March

Evacuees About 200 people attending a music festival near Waihi were evacuated because of flooding on 11 March.

Auckland

Multi HazardMulti Hazard at Auckland
Comments:

Comment Torrential overnight rain on 7-8 March caused widespread flooding in southeast Auckland. The worst affected areas in Auckland included Papakura, Clevedon, Beachlands and Maraetai. There were up to 100 small slips in the Hunua Ranges, Kawakawa Bay and Clevedon areas.

Affected Lifeline About 2000 Auckland homes were without power on 7-8 March. Most of the damage was caused by trees on power lines or slips pushing power poles.

Comment On 8 March the Auckland council closed Tapapakanga, Hunua Ranges, Waitawa Regional Park, Duder and Waharau regional parks because of flooding and slips. Campers were relocated to higher ground.

Comment Six Auckland schools and early education centres were closed on 8 March.

Comment Nearly 50mm of rain fell in central Auckland between 5pm and 8pm on 11 March. The Fire Service had about 30 callouts, mainly in east Auckland, relating to flooding during that time.

Affected Lifeline More than 1100 Auckland homes were without power on 11 March. About 780 were in Titirangi and about 300 were in Grey Lynn.

Comment Aucklanders were asked to reduce their daily water usage by 20 litres, after water going into the city's largest treatment plant at Ardmore was muddied by silt and sediment due to the downpour on 10-11 March.

Comment 65mm of rain fell on west Auckland in just one hour, at about midday 12 March. Nearly 180 homes flooded across Auckland including: Glen Eden (65), Titirangi (43), Henderson (30), Avondale (20), West Harbour (10), and Te Atatu (8). There was flooding in Kaukapakapa, Devonport, Parnell, Remuera, Eden Terrace, Blockhouse Bay, Morningside, Massey, Westgate, Whenuapai, and New Lynn.

Comment Floodwaters swept through 300 Auckland homes during 12 March. The water was waist-deep in some places. At least a dozen people were evacuated from a block of flats on Great North Road in Kelston.

FloodingFlooding at New Lynn
Map Location: -36.913247 174.677462
Comments:

Comment Flooding in New Lynn caused extensive damage to homes, infrastructure and businesses on 11-12 March. Floodwaters swept through 200 homes in New Lynn.

Comment A huge sinkhole opened up near a major intersection in New Lynn, leaving neighbouring buildings teetering near the edge.

Multi HazardMulti Hazard at Waiheke Island
Map Location: -36.810735 175.077389
Comments:

Affected LifelineWaiheke Island experienced widespread flooding and slips, after 161mm of rain fell on 7-8 March. Power was out in some areas.

CommentThere were two landslides on Waiheke Island on 11 March.

FloodingFlooding at Hunua Ranges
Map Location: -37.075086 175.180301
Comments:

Evacuees 350 school children were evacuated from two school camps, as torrential overnight rain led to severe flooding in the Hunua Ranges.

Physical Characteristic160mm of rain fell overnight on 7 March in the Hunua Ranges.

FloodingFlooding at Clevedon
Map Location: -36.993102 175.038415
Comments:

Affected Lifeline About 900 households in Takanini, Whitford and Clevedon were without power on 8 March.

Stock Damage Clevedon residents reported huge stock losses as the town was hit by the worst floods in at least 25 years.

Comment On 8 March a police car was swept away by a flash flood on Clevedon-Kawakawa Bay Road. The vehicle rapidly filled with water and the officers had to abandon it.

Northland

FloodingFlooding at Northland
Comments:

CommentThere was flooding on State Highways 1, 10, and 11, South of Kerikeri on 11 March.

CommentA family was trapped in their house, 35 km south of Kerkeri, by floodwaters.

Physical CharacteristicThe Waitangi catchment had 210mm of rain during the period 7-11 March.

Comment1200 people in Northland were without power on 11 March.

Physical Characteristic69mm of rain fell in one hour at Waitangi overnight on 10-11 March.

Heavy RainHeavy Rain at Kaitaia
Map Location: -35.107541 173.248564
Comments:

Physical CharacteristicKaitaia had a record rainfall, with 44.6mm falling between 3am and 4am on 11 March.

Bay of Plenty

Heavy RainHeavy Rain at Waihi Beach
Map Location: -37.40049 175.94134
Comments:

Physical CharacteristicWaihi Beach recorded more than 220mm of rain in 24 hours on 7-8 March

Maritime / CoastalMaritime / Coastal at Tauranga
Map Location: -37.679532 176.173022
Comments:

Comment A cruise liner was diverted from Tauranga because of the weather.

Wellington

Multi HazardMulti Hazard at Wellington
Comments:

CommentThere were landslips in the Wellington suburb of Newtown and surface flooding in Hutt Valley and Mana on 12 March. Grays Rd in Plimmerton was closed and there was surface flooding on Hutt Road between Ngauranga and Petone.

References

Meteorological Society of New Zealand (Inc.), Newsletter 149, Winter 2017
Insurance Council of New Zealand (http://www.icnz.org.nz/natural-disaster/historical-events)
Headline: Live: widespread flooding, slips, road chaos as rain continues in Auckland and Coromandel
www.nzherald.co.nz, 8 March 2017.
Headline: Clevedon residents watch livestock floating down river in ‘worst ever’ floods.
www.nzherald.co.nz, 8 March 2017.
Headline: Police car washed away in widespread flooding.
www.radionz.co.nz, 8 March 2017.
Headline: Flood-hit roads may take days to clear.
www.radionz.co.nz, 8 March 2017.
Headline: Wild weather: what you need to know.
www.radionz.co.nz, 8 March 2017.
Headline: Coromandel 'effectively cut off' by flooding.
www.radionz.co.nz, 8 March 2017.
Headline: Whiritoa bears brunt of Coromandel flooding.
www.radionz.co.nz, 8 March 2017.
Headline: Seven Coromandel homes hit by slips, others flooded across Auckland and Hauraki.
www.radionz.co.nz, 9 March 2017.
Headline: Record rain causes slips and power outages
www.radionz.co.nz, 11 March 2017.
Headline: Rain floods northern regions, with more on its way
www.radionz.co.nz, 11 March 2017.
Headline: Wild weather: What you need to know
www.radionz.co.nz, 12 March 2017.
Headline: Landslips and surface flooding in Wellington
www.radionz.co.nz, 12 March 2017.
Headline: Clean-up continues for flood-hit Auckland as massive sink hole appears
www.radionz.co.nz, 13 March 2017.
Headline: Live: As it happened: More than 300 homes flooded, power restored.
www.nzherald.co.nz, 14 March 2017.

March 2017 North Island Heavy Rain and Flooding ( 2017-03-07 )

Very heavy rain fell over many areas of the North Island during the period 7-13 March, which resulted in severe flooding. A slow-moving depression remained in the North Tasman Sea for most of this period. Fronts on the eastern edge of the depression brought the rain.

North Island

Multi HazardMulti Hazard at North Island
Duration:   7  days - From the 7th to 13th of March.
Comments:

Insurance ClaimInsurance claims totalled $61.7 million.

CommentMetService SEVERE WEATHER WARNING 9:31am 07-Mar-2017. HEAVY RAIN FOR THE CENTRAL AND UPPER NORTH ISLAND. A low and associated fronts over the Tasman Sea are moving southeastwards, and will bring rain to much of the North Island. The heaviest falls are likely to be in Waikato, Coromandel Peninsula and Bay of Plenty, and a Heavy Rain Warning is now in place for these areas. Up to 150mm of rain could accumulate in a relatively brief period, with localised thundery downpours. Please note, that a Watch is in force for significant heavy rain for Northland, Auckland, Waitomo, Taranaki, Taumarunui, Taupo, Gisborne and northern Hawkes Bay.

CommentMetService SEVERE WEATHER WARNING 7:49am 08-Mar-2017. HEAVY RAIN FOR THE CENTRAL AND UPPER NORTH ISLAND. Updated Wednesday morning to include Auckland in the heavy rain Warning and update the Warning for Coromandel Peninsula. A low and associated fronts over the Tasman Sea are moving southeastwards, has brought heavy rain to the northeast of the North Island last night. Rain should continue today. The heaviest falls are likely to be in Auckland, Great Barrier Island, Coromandel Peninsula, Bay of Plenty and Gisborne north of Tolaga Bay.

CommentMetService SEVERE WEATHER WARNING 8:57pm 08-Mar-2017. HEAVY RAIN FOR NORTHLAND AND THE COROMANDEL PENINSULA. A low over the Tasman Sea extends a slow-moving trough over northern New Zealand. Widespread heavy rain over northern and eastern areas has eased in most places, however further heavy rain is expected over Northland and the Coromandel Peninsula.

CommentMetService SEVERE WEATHER WARNING 8:04pm 09-Mar-2017. HEAVY RAIN FOR NORTHLAND, COROMANDEL PENINSULA AND BAY OF PLENTY.

CommentMetService SEVERE WEATHER WARNING 8:55am 10-Mar-2017. HEAVY RAIN FOR NORTHLAND, AUCKLAND, COROMANDEL PENINSULA, BAY OF PLENTY AND NORTHWEST NELSON

CommentMetService SEVERE WEATHER WARNING 6:21am 12-Mar-2017. HEAVY RAIN FOR TARANAKI, HOROWHENUA KAPITI COAST, WELLINGTON, NELSON AND NORTHERN MARLBOROUGH, INCLUDING THE SOUNDS. (WARNING UPDATED TO ADD TARANAKI, HOROWHENUA KAPITI COAST AND WELLINGTON)

CommentMetService SEVERE WEATHER WARNING 5:14pm 12-Mar-2017. HEAVY RAIN ABOUT EASTERN BAY OF PLENTY EASING THIS EVENING.

Waikato

Multi HazardMulti Hazard at Coromandel Peninsula
Comments:

Physical CharacteristicThe torrential rain which fell in east Coromandel on 7 and 8 March was about a one-in-100-year event. Some areas received more rain in two days than normally fell in the entire month.

CommentWater supplies in the Coromandel were affected by the power outages and heavy rain, which had put the pump stations at some wastewater treatment plants under pressure. The Thames-Coromandel District Council asked people not to flush toilets if they could help it in Tairua, Pauanui, Onemana and Whangamata because the sewerage was not working.

CommentSevere flooding hit the Coromandel Peninsula, where many roads across the peninsula were impassable. The flooding cut off access to the entire Coromandel Peninsula.

CommentSome Whiritoa residents were evacuated to the local surf club on 8 March. The Whiritoa Fire Brigade rescued a motorist whose car had been damaged by floodwaters.

CommentOne-third of the shops in Thames township were closed on 8 March, as workers were unable to reach their workplaces due to flooding and landslips.

Physical Characteristic The Waikato Regional Council recorded a 24-hour rainfall of 407mm at the Pinnacles measuring station in the Coromandel ranges, midway between Thames and Tairua.

Damage Twenty schools and early education centres were closed in the Coromandel/Thames region on 8 March.

Physical Characteristic 130mm of rain fell in 24 hours on the Coromandel Peninsula on 10-11 March.

Multi HazardMulti Hazard at Whangamata
Map Location: -37.209197 175.878206
Comments:

Physical CharacteristicWhangamata had 259.8 millimetres of rain in less than 36 hours on 7-8 March.

Evacuees 31 people, who were mostly school children evacuated from a Whangamata school camp, spent the night of 8 March in a Coromandel Peninsula evacuation centre, after torrential rain overnight left the area effectively cut off. The head of Civil Defence said the flooding in the region was the worst in more than a decade.

Comment Five homes in Whangamata and two in Onemana sustained significant damage from large landslides.

CommentShops and banks at Whangamata were closed due to flooding on 8 March. There were also phone outages and limited petrol at Whangamata.

FloodingFlooding at Kaiaua
Map Location: -37.1122 175.2964
Comments:

Evacuees10 houses at Kaiaua had floodwaters go through them on 7-8 March. The residents self-evacuated.

FloodingFlooding at Waikato
Comments:

CommentHomes in Te Awamutu and Frankton in Hamilton were flooded on 11 March

Evacuees About 200 people attending a music festival near Waihi were evacuated because of flooding on 11 March.

Auckland

Multi HazardMulti Hazard at Auckland
Comments:

Comment Torrential overnight rain on 7-8 March caused widespread flooding in southeast Auckland. The worst affected areas in Auckland included Papakura, Clevedon, Beachlands and Maraetai. There were up to 100 small slips in the Hunua Ranges, Kawakawa Bay and Clevedon areas.

Affected Lifeline About 2000 Auckland homes were without power on 7-8 March. Most of the damage was caused by trees on power lines or slips pushing power poles.

Comment On 8 March the Auckland council closed Tapapakanga, Hunua Ranges, Waitawa Regional Park, Duder and Waharau regional parks because of flooding and slips. Campers were relocated to higher ground.

Comment Six Auckland schools and early education centres were closed on 8 March.

Comment Nearly 50mm of rain fell in central Auckland between 5pm and 8pm on 11 March. The Fire Service had about 30 callouts, mainly in east Auckland, relating to flooding during that time.

Affected Lifeline More than 1100 Auckland homes were without power on 11 March. About 780 were in Titirangi and about 300 were in Grey Lynn.

Comment Aucklanders were asked to reduce their daily water usage by 20 litres, after water going into the city's largest treatment plant at Ardmore was muddied by silt and sediment due to the downpour on 10-11 March.

Comment 65mm of rain fell on west Auckland in just one hour, at about midday 12 March. Nearly 180 homes flooded across Auckland including: Glen Eden (65), Titirangi (43), Henderson (30), Avondale (20), West Harbour (10), and Te Atatu (8). There was flooding in Kaukapakapa, Devonport, Parnell, Remuera, Eden Terrace, Blockhouse Bay, Morningside, Massey, Westgate, Whenuapai, and New Lynn.

Comment Floodwaters swept through 300 Auckland homes during 12 March. The water was waist-deep in some places. At least a dozen people were evacuated from a block of flats on Great North Road in Kelston.

FloodingFlooding at New Lynn
Map Location: -36.913247 174.677462
Comments:

Comment Flooding in New Lynn caused extensive damage to homes, infrastructure and businesses on 11-12 March. Floodwaters swept through 200 homes in New Lynn.

Comment A huge sinkhole opened up near a major intersection in New Lynn, leaving neighbouring buildings teetering near the edge.

Multi HazardMulti Hazard at Waiheke Island
Map Location: -36.810735 175.077389
Comments:

Affected LifelineWaiheke Island experienced widespread flooding and slips, after 161mm of rain fell on 7-8 March. Power was out in some areas.

CommentThere were two landslides on Waiheke Island on 11 March.

FloodingFlooding at Hunua Ranges
Map Location: -37.075086 175.180301
Comments:

Evacuees 350 school children were evacuated from two school camps, as torrential overnight rain led to severe flooding in the Hunua Ranges.

Physical Characteristic160mm of rain fell overnight on 7 March in the Hunua Ranges.

FloodingFlooding at Clevedon
Map Location: -36.993102 175.038415
Comments:

Affected Lifeline About 900 households in Takanini, Whitford and Clevedon were without power on 8 March.

Stock Damage Clevedon residents reported huge stock losses as the town was hit by the worst floods in at least 25 years.

Comment On 8 March a police car was swept away by a flash flood on Clevedon-Kawakawa Bay Road. The vehicle rapidly filled with water and the officers had to abandon it.

Northland

FloodingFlooding at Northland
Comments:

CommentThere was flooding on State Highways 1, 10, and 11, South of Kerikeri on 11 March.

CommentA family was trapped in their house, 35 km south of Kerkeri, by floodwaters.

Physical CharacteristicThe Waitangi catchment had 210mm of rain during the period 7-11 March.

Comment1200 people in Northland were without power on 11 March.

Physical Characteristic69mm of rain fell in one hour at Waitangi overnight on 10-11 March.

Heavy RainHeavy Rain at Kaitaia
Map Location: -35.107541 173.248564
Comments:

Physical CharacteristicKaitaia had a record rainfall, with 44.6mm falling between 3am and 4am on 11 March.

Bay of Plenty

Heavy RainHeavy Rain at Waihi Beach
Map Location: -37.40049 175.94134
Comments:

Physical CharacteristicWaihi Beach recorded more than 220mm of rain in 24 hours on 7-8 March

Maritime / CoastalMaritime / Coastal at Tauranga
Map Location: -37.679532 176.173022
Comments:

Comment A cruise liner was diverted from Tauranga because of the weather.

Wellington

Multi HazardMulti Hazard at Wellington
Comments:

CommentThere were landslips in the Wellington suburb of Newtown and surface flooding in Hutt Valley and Mana on 12 March. Grays Rd in Plimmerton was closed and there was surface flooding on Hutt Road between Ngauranga and Petone.

References

Meteorological Society of New Zealand (Inc.), Newsletter 149, Winter 2017
Insurance Council of New Zealand (http://www.icnz.org.nz/natural-disaster/historical-events)
Headline: Live: widespread flooding, slips, road chaos as rain continues in Auckland and Coromandel
www.nzherald.co.nz, 8 March 2017.
Headline: Clevedon residents watch livestock floating down river in ‘worst ever’ floods.
www.nzherald.co.nz, 8 March 2017.
Headline: Police car washed away in widespread flooding.
www.radionz.co.nz, 8 March 2017.
Headline: Flood-hit roads may take days to clear.
www.radionz.co.nz, 8 March 2017.
Headline: Wild weather: what you need to know.
www.radionz.co.nz, 8 March 2017.
Headline: Coromandel 'effectively cut off' by flooding.
www.radionz.co.nz, 8 March 2017.
Headline: Whiritoa bears brunt of Coromandel flooding.
www.radionz.co.nz, 8 March 2017.
Headline: Seven Coromandel homes hit by slips, others flooded across Auckland and Hauraki.
www.radionz.co.nz, 9 March 2017.
Headline: Record rain causes slips and power outages
www.radionz.co.nz, 11 March 2017.
Headline: Rain floods northern regions, with more on its way
www.radionz.co.nz, 11 March 2017.
Headline: Wild weather: What you need to know
www.radionz.co.nz, 12 March 2017.
Headline: Landslips and surface flooding in Wellington
www.radionz.co.nz, 12 March 2017.
Headline: Clean-up continues for flood-hit Auckland as massive sink hole appears
www.radionz.co.nz, 13 March 2017.
Headline: Live: As it happened: More than 300 homes flooded, power restored.
www.nzherald.co.nz, 14 March 2017.