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forecasts of ’blended * ’ en-route aviation hazard data. ( * combined WAFC London & Washington hazard data ) The table below shows the percentage of complete datasets available on SADIS by 05:00 over the last 4 months. Performance measure: ≥ 99.2 percent of complete data. October 2025 November 2025

are the warmest months in the region with mean daily maxima reaching up to 19 °C in southern Dumfries and Galloway and the Clyde valley. These may be compared with 23.5 °C in the London area. Instances of extreme high temperatures are rare. Average annual rainfall totals range from less than 1000 mm

.2018.02.024, 2018. Hernández-Paniagua, I. Y., … O’Doherty, S., et al.: Diurnal, seasonal, and annual trends in tropospheric CO in Southwest London during 2000–2015: Wind sector analysis and comparisons with urban and remote sites, Atmos. Environ., 177, 262–274, doi:10.1016/j.atmosenv.2018.01.027

GMT, from the powerful Air Ministry station G.F.A. in London, on a wavelength of 4,100 metres using CW (continuous wave) transmission, a for of morse code, which was capable of being received at a distance of up to 2,400 miles to the west and some 2,000 miles to the south. Figure 3. Sea areas

recorded temperature was 34.5 o C at Heathrow, London on 21 st June. This was the most notable June heatwave since 1976 and the map on page 18 shows widespread maxima above 30 o C across central and southern England in 2017. The summer days index is a count of days where the maximum temperature

MINUTES PWSCG (46) Meeting 10:00 – 14:30 Wednesday 24 th April 2019 Conference Centre, 1 Victoria Street, London, SW1H 0ET Attendees Wyn Williams (WW) Denise Harker (DH) James Cross (JC) Colin Hord (CH) Nick Davies (ND) Nathan Travis (NT) Emer O’Connell (EO) Ian Hoult (IH) Paula English (PE

considerable expansion. The various records it produced were stored in a haphazard manner at various locations in London, Dunstable and Harrow, with different divisions within the Office having responsibility for different records. Fig. 3. Met Office Record Store in 1950s at Dunstable. However, in 1955

valley. These may be compared with 23.5 °C in the London area. Instances of extreme high temperatures are rare and are associated with hot air brought from mainland Europe on south easterly winds, accompanied by strong sunshine. The highest temperature ever recorded in the whole of Scotland was 32.9 °C

(@metoffice) August 13, 2025 Friday: sunshine and rising temperatures Friday continues the theme of warmth, with much of England and Wales enjoying blue skies and sunshine. Temperatures will climb again, with highs around 31°C in the London area and widespread mid to high 20s elsewhere. Scotland

. Several buildings experienced structural damage from the strong winds. For example, the storm of 12 February resulted in some damaged roofs at Porthmadog, Gwynedd and a member of the public was killed on 13 February a er trees brought down power lines in Wiltshire. A motorist was killed in central London