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for the seasonal mean temperature • Medians increases with rarity, because 1-in-100 year events are by construction higher than 1-in-20 or 1-in-50 year events • Uncertainty ranges in return level also increase slightly with return period Figure 1 A comparison of summer daily maximum temperature for a London
in heatwave territory. For a heatwave to be officially recognised, temperatures must exceed specific thresholds for three consecutive days. These thresholds vary by region: 28°C in London and the southeast, 27°C in parts of the Midlands, and 25°C across much of Wales, northern England, Scotland, and Northern
, London, and East Anglia. Northern Ireland and northern England could also experience heavy showers, with the risk of torrential downpours, thunder, and lightning. Despite the unsettled elements, most areas will still experience light winds and warm temperatures. Highs in the low 30s are expected
Wales and southwest England, and over 30°C in eastern England. Monday is expected to be the hottest day of this spell, with highs of 32-34°C possible in southeast England, including London and Cambridge. Scotland and Northern Ireland will also feel warmer than on Sunday as the warm air spreads further
as WAFC London and NOAA as WAFC Washington. In the 1990’s the WAFCs and their WAFS were mature enough that the regional area forecast centres were closed. Evolving technology Over the years, our services have continuously evolved to meet the changing needs of the aviation industry: 1990s: We developed
="degC">-3.7</Extreme> <Extreme locId="99163" locationName="Porthmadog" type="HRAIN" uom="mm">1.0</Extreme> <Extreme locId="03716" locationName="St Athan" type="HSUN" uom="hours">7.5</Extreme> </Extremes> </Region> <Region id="se" name="London & South East England"> <Extremes> <Extreme locId="03874
caused a trailer to overturn on the Tay Bridge, resulting in temporary closure. After heavy overnight rain, flooding impacted both roads and rail services on the 3rd, including some London Underground stations. Parts of Essex also saw roads flooded, whilst numerous Environment Agency flood alerts
of wheat would increase water insecurity. Sources: Purseglove, J. W. (1974) Tropical Crops: Dicotyledons (vols 1 & 2). London: Longman Publishing Group. Purseglove, J. W. (1975) Tropical Crops: Monocotyledons (vols 1 & 2). London: Longman Scientific & Technical. 20 Appendix D: Climate projections
, giving an overall figure of 132% of average, provisionally the third sunniest January for the UK in a series from 1919. The UK monthly extremes were as follows: A maximum temperature of 16.3 °C was recorded at St James’s Park (Greater London) on the 1st. A minimum temperature of -8.0 °C
drawing a hot Tropical Continental Airmass; this type of pressure pattern being typical of heatwave conditions across the UK. Temperatures on the 9th reached 31 to 32°C fairly widely across south-east England, and 33°C in London. As often happens in the UK, the heat and humidity lead to some intense
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