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August_2021_New_Zealand_Snow: 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.

July_2021_South_Island_Flooding: The combination of a moist northwesterly flow over central New Zealand and a slow-moving front over the central South Island persisted for several days. The severity of the storm was due to its prolonged nature, with heavy rain persisting over three to four days. Heavy rainfalls occurred in the mountains, as the mild conditions meant that rain instead of snow fell at higher altitudes than usual. Widespread and severe flooding occurred, with Westport being particularly badly affected when the Buller River broke its banks and inundated the town.

June 2021 Auckland Tornado: A front moved across the north of the North Island during June 19, with thunderstorms and heavy downpours of rain. One of these storms spawned a tornado in South Auckland which left a trail of destruction in Papatoetoe.

June_2021_Gisborne_Flooding: A complex low pressure system crossing northern and central areas during this period brought stormy weather to many areas. Flooding affected several areas, especially in the East Cape region.

May_2021_Canterbury_Flooding: A deep low centred to the west of the North Island brought widespread rain to most of New Zealand. Heavy rainfall developed in many parts of Canterbury, resulting in severe flooding causing much disruption and damage.

December 2020 Tasman-Nelson Hail: Severe thunderstorms hit Abel Tasman National Park, Motueka, Tasman Bay, Riwaka and Kaiteriteri, bringing heavy rain and hail to the area.

November 2020 Hawkes Bay Flooding: A complex low pressure system affected NZ over the period 7-11 November, with unsettled and stormy weather in many areas. However, the heavy rainstorm which hit Napier on the 9th caused by far the most disruption and damage.

July 2020 Upper North Island Flooding: Over the period 15-19 July there were heavy rainfalls and subsequent flooding in some northern parts of the North Island. During this period was a deep slow-moving low in the North Tasman Sea, and persistent high pressure over and to the south of the South Island. There were several outbreaks of very heavy rain in the north of the North Island with some areas experiencing significant flooding, especially parts of Northland.

February 2020 South Island Flood: Fronts within a very warm northwesterly flow brought very heavy rain to Westland, Fiordland and Southland. This caused severe flooding and slips across Fiordland, Southland, and South Otago.

December 2019 New Zealand Storm: A prolonged period of unstable northwesterly flow affected much of New Zealand over this period. There was particularly heavy rain about and west of the Southern Alps, which caused severe disruption and damage to the South Island’s West Coast.

November 2019 Timaru Hail: A severe hailstorm over Timaru, with golf ball-sized hail stones, caused extensive damage to buildings and vehicles.

August 2019 New Zealand Storm: A complex low pressure system, with a number of associated fronts, brought rain, gales and thunderstorms to many parts of the country, and snow down to 300 to 400 metres across southern and eastern parts of the lower South Island.

March 2019 South Island Flooding: A strong, warm northwest flow covered the South Island, with several fronts slowly crossed the island. In addition, a warmer than usual Tasman Sea resulted in heavier rain (some parts of Westland had up to 800 mm during the downpour) than would normally occur. The heavy rain raised rivers to record levels. There were many slips and flooding that damaged property and closed roads. Haast experienced a one-in-100-year flood.

November 2018 West Coast Storm: A trough over southern and central areas brought very heavy rain to the West Coast of the South Island and snow to low levels in inland Canterbury.

April 2018 New Zealand Storm: 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.

February 2018 Ex Tropical Cyclone Gita: Ex-tropical cyclone Gita brought very heavy rain and severe gales, and caused severe damage to many areas of New Zealand. The worst affected areas were northwest Nelson/Golden Bay, the Kaikoura Coast, and Taranaki.

February 2018 Ex Tropical Cyclone Fehi: Ex-tropical cyclone Fehi moved into the North Tasman Sea, and then combined with a trough moving in from the southwest. The storm crossed New Zealand, causing extensive damage due to wind, rain and coastal storm surges. The West Coast of the South Island was badly affected by the wind and rain, and the Nelson area was affected by storm surges.

January 2018 New Zealand Storm: A deep low brought stormy weather to northern and central areas of New Zealand. Severe gales and heavy rain caused severe damage in the north of the North Island. There was also coastal devastation from the combination of low pressure, king tides and very strong winds.

July 2017 New Zealand Flood: A large complex low pressure system brought heavy rain and gales to Otago and Canterbury, causing significant flooding during the period 20-22 July. The Bay of Plenty area was also badly affected.

July 2017 New Zealand Storm: A winter storm moved over New Zealand during the period 12-14 July. The central and lower North Island were the worst affected, with snow, rain and gales.

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