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A period of unusually hot summer weather occurred in the British Isles during the summer of 1976. At the same time, there was a severe drought on the islands of Great Britain and Ireland. It was one of the Summer of 1976 (Europe), driest, sunniest and warmest summers (June/July/August) in the 20th century, although 1995 UK and Ireland heat wave, the summer of 1995 is now regarded as the driest. Only a few places registered more than half their average summer rainfall. In the Central England temperature, CET record, it was the warmest summer in the series until being surpassed in the 21st century. It was the warmest summer in the Aberdeen area since at least 1864, and the driest summer since 1868 in Glasgow.
The health effects of the heat contributed to mortality displacement during the year. Wildlife and vegetation effects were also observed. The British government implemented water rationing to mitigate the impact of the drought. It remains a reference point for unusually hot summers in the country.
(full text) Parts of the south West England, south west went 45 days without any rain in July and August. As the hot and dry weather continued, devastating heath (habitat), heath and forest fires broke out in parts of Southern England. 50,000 trees were destroyed at Hurn Forest in Dorset. Crops were badly hit, with £500 million worth of crops failing. Food prices subsequently increased by 12%. In the last week of August 1976, days after Denis Howell was appointed 'Minister for Drought', severe thunderstorms brought rain to some places for the first time in weeks. September and October 1976 were both very wet months, bringing to an end the great drought of 1975–1976. The Haweswater Reservoir, Haweswater reservoir had only 10% of its water left; people walked dryshod on its bed below its normal water level. The site of the flooded village of Mardale Green was dry. Ladybower Reservoir, Ladybower reservoir in Derbyshire dried out and revealed the flooded villages of Ashopton and Derwent, Derbyshire, Derwent, it was possible to make out the village layout and garden walls. In Ireland the temperature reached in County Offaly on 29 June 1976. There were also gorse fires in County Wicklow.
The effect on water supply, domestic water supplies led to the passing of a Drought Act by Parliament of the United Kingdom, Parliament and Minister for Drought, Denis Howell, was appointed. There was some water rationing and public standpipe (street), standpipes in some affected areas. Reservoirs were at an extremely low level, as were some rivers. The rivers River Don, South Yorkshire, Don, River Sheaf, Sheaf, Shire Brook and Meers Brook (all in Sheffield) all ran completely dry, without a drop of water in any of them, as well as Frecheville Pond and Carterhall Pond.
Longer term, the UK Department for Environment, Food and Rural Affairs, Department of the Environment realised it needed more information about the storage capacity and other properties of British aquifers, as sources of groundwater.
The highest temperature during the 1976 heatwave was , 0.8 °C below the record at the time of set on 9 August 1911. As of 2022, 1976 has the United Kingdom weather records, 13th hottest day in UK history. In the Central England Temperature series, 1976 is the hottest summer for more than 350 years. The average temperature over the whole summer (June, July, August) was , compared to the average for the unusually warm years between 2001–2008 of . As of 2022, the hottest years in the series are 2003, 2006 European heat wave, 2006 and 2014.
The summer became embedded in the National psychology, national psyche, with subsequent heatwaves in 1995, 1997, 2003 European heat wave, 2003, 2006 European heat wave, 2006 and 2022 United Kingdom heat wave, 2022, all using 1976 as a benchmark. The 1976 heatwave was a rarity within its decade. Heatwaves in the UK and worldwide have since become more frequent and intense due to Climate change in the United Kingdom, climate change.
Heatwave and drought effects
Heathrow had 16 consecutive days over 30 °C (86 °F) from 23 June to 8 July and for 15 consecutive days from 23 June to 7 July temperatures reached 32.2 °C (90 °F) somewhere in England. Furthermore, five days saw temperatures exceed 35 °C (95 °F). On 28 June, temperatures reached 35.6 °C (96.1 °F) in Southampton, the highest June temperature recorded in the UK. The hottest day of all was 3 July, with temperatures reaching 35.9 °C (96.6 °F) in Cheltenham. The great drought was due to a very long dry period. The summer and autumn of 1975 were very dry, and the winter of 1975–76 was exceptionally dry, as was the spring of 1976; indeed, some months during this period had no rain at all in some areas. The drought was at its most severe in August 1976 and in response Parliament passed the Drought Act 1976 to ration water.http://politicsuk.net(full text) Parts of the south West England, south west went 45 days without any rain in July and August. As the hot and dry weather continued, devastating heath (habitat), heath and forest fires broke out in parts of Southern England. 50,000 trees were destroyed at Hurn Forest in Dorset. Crops were badly hit, with £500 million worth of crops failing. Food prices subsequently increased by 12%. In the last week of August 1976, days after Denis Howell was appointed 'Minister for Drought', severe thunderstorms brought rain to some places for the first time in weeks. September and October 1976 were both very wet months, bringing to an end the great drought of 1975–1976. The Haweswater Reservoir, Haweswater reservoir had only 10% of its water left; people walked dryshod on its bed below its normal water level. The site of the flooded village of Mardale Green was dry. Ladybower Reservoir, Ladybower reservoir in Derbyshire dried out and revealed the flooded villages of Ashopton and Derwent, Derbyshire, Derwent, it was possible to make out the village layout and garden walls. In Ireland the temperature reached in County Offaly on 29 June 1976. There were also gorse fires in County Wicklow.
Health impact
The 1976 heatwave is understood to have been the cause of 20% "Mortality displacement, excess deaths" and there was a significant increase in hospital emergency admissions from 24 June to 8 July 1976 than for the same period in 1975 or 1974. This compares to 59% excess deaths for the 2003 European heat wave, 2003 heatwave.Ecological impact
Massive swarms of seven-spotted ladybirds (''Coccinella septempunctata'') occurred across the country, with the British Entomological and Natural History Society estimating that by late July 23.65 billion of them were swarming across the southern and eastern coasts of England. The population explosion occurred because a warm spring had meant there were many Aphid, aphids, the ladybirds' food prey; as the hot weather dried the plants on which the aphids fed, the aphid populations collapsed, causing the ladybirds to swarm to try to find food elsewhere. The extensive fires paradoxically helped preserve many areas of heathland that had been becoming scrubland through natural succession because of reduced grazing pressure; the only long-term effect of the fires on Dorset heathlands was a change in the composition of scrub. The impacts of the extended drought on mature trees, especially beech, were still evident in UK woodlands in 2013.Government response
The effect on water supply, domestic water supplies led to the passing of a Drought Act by Parliament of the United Kingdom, Parliament and Minister for Drought, Denis Howell, was appointed. There was some water rationing and public standpipe (street), standpipes in some affected areas. Reservoirs were at an extremely low level, as were some rivers. The rivers River Don, South Yorkshire, Don, River Sheaf, Sheaf, Shire Brook and Meers Brook (all in Sheffield) all ran completely dry, without a drop of water in any of them, as well as Frecheville Pond and Carterhall Pond.
Longer term, the UK Department for Environment, Food and Rural Affairs, Department of the Environment realised it needed more information about the storage capacity and other properties of British aquifers, as sources of groundwater.
Comparisons
The highest temperature during the 1976 heatwave was , 0.8 °C below the record at the time of set on 9 August 1911. As of 2022, 1976 has the United Kingdom weather records, 13th hottest day in UK history. In the Central England Temperature series, 1976 is the hottest summer for more than 350 years. The average temperature over the whole summer (June, July, August) was , compared to the average for the unusually warm years between 2001–2008 of . As of 2022, the hottest years in the series are 2003, 2006 European heat wave, 2006 and 2014.
The summer became embedded in the National psychology, national psyche, with subsequent heatwaves in 1995, 1997, 2003 European heat wave, 2003, 2006 European heat wave, 2006 and 2022 United Kingdom heat wave, 2022, all using 1976 as a benchmark. The 1976 heatwave was a rarity within its decade. Heatwaves in the UK and worldwide have since become more frequent and intense due to Climate change in the United Kingdom, climate change.
See also
* Drought in the United Kingdom * 1955 United Kingdom heat wave * Summer of 1976 (Europe) * 2003 European heat wave * 2006 European heat wave * 2022 United Kingdom heatwavesReferences
Bibliography
* ''The Great Drought of 1976''. Evelyn Cox (1978). Hutchinson, Readers Union Group, {{Heat waves in the United Kingdom 1976 meteorology, United Kingdom Heat Wave, 1976 1976 natural disasters, United Kingdom Heat Wave, 1976 Heat waves in the United Kingdom 1976 in the United Kingdom, Heat wave 1976 heat waves 1976 disasters in the United Kingdom June 1976 events in Europe July 1976 events in Europe August 1976 events in Europe Natural disasters in Ireland 1976 in Ireland