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• caa_verification_202504pdf

  of complete data. January 2025 February 2025 March 2025 April 2025 late GRIB2 100 100 97.6 100 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 hazard data

• caa_verification-october-2025.pdf

  : ≥ 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

• caa_verification-feb-2025.pdf

  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 available on SADIS by 05:00 over the last

• Week ahead forecast: Milder conditions but heavy rain possible later in the week

  : settled, dry and warm for many London Marathon forecast: a cool start with sunny spells 10-day trend: largely settled into the weekend Pollen forecast: High levels across much of the UK Weekly weather quiz: Test your knowledge Deep Dive: High-pressure, dry air and meteor showers How the Chornobyl

• caa_verification-november-2025.pdf

  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. August 2025 September 2025 October 2025 November 2025 late GRIB2 100.0

• 10‑day trend: little sign of major change as the unsettled pattern continues

  store and for Android from the Google Play store.  More by Met Office Week ahead: High pressure remains in charge, but with some changes Weekend weather: settled, dry and warm for many London Marathon forecast: a cool start with sunny spells 10-day trend: largely settled into the weekend Pollen forecast

• MAVIS updates

    British Isles Analysis Chart GAMETs London CTA Helicopter Report  NATs 24hr LVP Risk (AM & PM) NATs Convective Risk D0-D1 NATs 0-3hr Trajectory Triggered Lightning Outlook Forecast Improvements to Sites Display  To reduce clutter on the base map, additional site toggles have been added to the 'edit

• caa_verification-september-2025pdf

  : ≥ 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

• Week ahead: unsettled with rain, wind and some hill snow

  , 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 Week ahead: High pressure remains in charge, but with some changes Weekend weather: settled, dry and warm for many London Marathon forecast: a cool start

• Met Office 10-Day Trend: Heat to peak into next week

  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 north. However, this heat