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At present ICAO mandated Volcanic Ash forecasts are: www.metoffice.gov.uk © Crown Copyright 2023, Met Office • Since 2010 VAAC London and VAAC Toulouse have provided ash concentration forecasts • Data provided as charts, and simple data files • Frustration for the customers/stakeholders outside

-lines represent anomalies of +/- 100 HDD. The table provides average values (HDD). Please also refer to page 54 correction to State of the Climate 2014 report. 17 In general, the highest cooling degree day (CDD) values are around Greater London due in part to the urban heat-island effect. Although

of 114% of average. The UK monthly extremes were as follows: A maximum temperature of 22.9 °C was recorded at Kew Gardens (Greater London) on the 29th. A minimum temperature of -3.8 °C was recorded at Aboyne (Aberdeenshire) on the 15th. In the 24 hours ending 0900 UTC on the 5th, 102.6 mm of rain fell

at 0900 UTC 30.1°C on 1st at Cambridge, Botanic Garden (Cambridgeshire, 13mAMSL) 7.3°C on 27th at Balmoral (Aberdeenshire, 283mAMSL) 18.8°C on 2nd at London, St James's Park (Greater London, 5mAMSL) -3.0°C on 25th at Tyndrum No 3 (Perthshire (in Central Region), 168mAMSL) and Braemar No 2

on 19th at London, St James's Park (Greater London, 5mAMSL) 8.3°C on 21st at Tomintoul No 6 (Banffshire, 320mAMSL) 18.5°C on 7th at Swanage (Dorset, 10mAMSL) -5.0°C on 29th at Tomintoul No 6 (Banffshire, 320mAMSL) -6.6°C on 29th at Tomintoul No 6 (Banffshire, 320mAMSL) 87.8mm on 11th at Achnagart

and in central and eastern Scotland. The UK monthly extremes were as follows: A maximum temperature of 33.4 °C was recorded at Heathrow (London) on the 25th. A minimum temperature of -1.9 °C was recorded at Tulloch Bridge (Inverness-shire) on the 8th. In the 24 hours ending at 0900 GMT on the 29th, 212.8

in Northern Ireland and parts of western Scotland. The UK monthly extremes were as follows: A maximum temperature of 19.8 °C was recorded at Kew Gardens (Greater London) on the 26th. A minimum temperature of -6.9 °C was recorded at Aboyne (Aberdeenshire) on the 5th. In the 24 hours ending at 0900 GMT

especially parts of eastern England, with an overall figure of 107% of average. The UK monthly extremes were as follows: A maximum temperature of 23.4 °C was recorded at St James’s Park (London) on the 15th. A minimum temperature of -8.0 °C was recorded at Tulloch Bridge (Inverness-shire) on the 1st

Minimum Lowest Minimum Lowest Grass Minimum Most Rainfall Most Sunshine Highest Gust Highest Gust (mountain*) Greatest Snow Depth at 0900 UTC 30.1°C on 1st at Cambridge, Botanic Garden (Cambridgeshire, 13mAMSL) 7.3°C on 27th at Balmoral (Aberdeenshire, 283mAMSL) 18.8°C on 2nd at London, St James's

temperatures of 20.8 °C were recorded at St James’s Park (London) on the 23rd and Treknow (Cornwall) on the 25th. A minimum temperature of -9.1 °C was recorded at Aboyne (Aberdeenshire) on the 2nd. In the 24 hours ending at 0900 UTC on the 2nd, 51.6 mm of rain fell at White Barrow (Devon). A wind gust