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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

: ≥ 99.2 percent of complete data. June 2025 July 2025 August 2025 September 2025 late GRIB2 98.3% 99.4% 100% 100% GRIB2 CB/Icing/Turbulence Objective: Ensuring flight planning systems have timely and reliable forecasts of ’blended * ’ en-route aviation hazard data. ( * combined WAFC London & Washington

for iPhone from the App store and for Android from the Google Play store.  More by Met Office Weekly weather quiz: Test your knowledge London Marathon forecast: a cool start with sunny spells How the Chornobyl disaster advanced dispersion science Weekend weather: settled, dry and warm for many 10-day

, by following us on X and Facebook, as well as on our mobile app which is available for iPhone from the App store and for Android from the Google Play store.  More by Met Office Weekly weather quiz: Test your knowledge London Marathon forecast: a cool start with sunny spells How the Chornobyl disaster

: ≥ 99.2 percent of complete data. July 2025 August 2025 September 2025 October 2025 late GRIB2 99.4% 100% 100% 99.2% GRIB2 CB/Icing/Turbulence Objective: Ensuring flight planning systems have timely and reliable forecasts of ’blended * ’ en-route aviation hazard data. ( * combined WAFC London

PWSCG (34) Meeting 10:30 – 16:00 Wednesday 15 th July 2015 Conference Centre, BIS, 1 Victoria Street, London In Attendence: Wyn Williams (WW) Denise Harker (DH) Mike Gray (MG) Paul Riches (PR) Katrina Lidbetter (KL) Alessia Morris (AM) Colin Hord (CH) Martin Jones (MJ) George Tabeart (GT) Liz

late GRIB2 97.6% 100% 98.4% 98.3% GRIB2 CB/Icing/Turbulence Objective: Ensuring flight planning systems have timely and reliable forecasts of ’blended * ’ en-route aviation hazard data. ( * combined WAFC London & Washington hazard data ) The table below shows the percentage of complete datasets

knowledge London Marathon forecast: a cool start with sunny spells How the Chornobyl disaster advanced dispersion science Weekend weather: settled, dry and warm for many 10-day trend: largely settled into the weekend Pollen forecast: High levels across much of the UK Deep Dive: High-pressure, dry air

if we inadvertently find ourselves in cloud? When did we last practise with London Centre / D&D on VHF 121.5MHz? • Ensure careful monitoring of fuel, distance, speed and elapsed time when dealing with delays from encountered weather. • During take-off for this flight, be ready to deal with gusts

.  More by Met Office Weekly weather quiz: Test your knowledge London Marathon forecast: a cool start with sunny spells How the Chornobyl disaster advanced dispersion science Weekend weather: settled, dry and warm for many 10-day trend: largely settled into the weekend Pollen forecast: High levels