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• caa_verification_202504.pdf

  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

• How the Chornobyl disaster advanced dispersion science

  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: High levels across much of the UK Weekly weather quiz: Test your

• New scientific model upgrade is a major step forward in the accuracy of UK weather forecasting 

  from the App store and for Android from the Google Play store.   More by Met Office How the refreshed Met Office app is taking shape 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

• Getting WeatherReady for wind and rain as Storm Chandra approaches

  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: High levels across much of the UK Weekly weather quiz: Test your knowledge Deep Dive: High-pressure, dry air and meteor showers How

• caa_verification_202505-maypdf

  2025 April 2025 May 2025 late GRIB2 100% 97.6% 100% 98.4% 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

• Warmest spring on record for England and Wales – third warmest for UK

  : Northern England saw 90% of average rainfall, compared to just 50% in Southern England.   Several counties in the southeast and east of England saw just over a third of their average seasonal rainfall, including Suffolk (33%), Kent (33%), Essex (34%) and Cambridgeshire (35%), City of London (36

• 10-day trend: Unsettled and windy conditions on the way for Easter weekend

  the refreshed Met Office app is taking shape 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: High levels across much

• caa_verification_report_june2025pdf

  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

• caa_verification_202503pdf

  January 2025 February 2025 March 2025 late GRIB2 99.2 100 100 97.6 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

• 10-day trend: Warmer weather returns as high pressure builds

  , conditions remain predominantly dry with a mild start to the day. Temperatures continue to rise on Friday, with values reaching around 27°C in central parts of London and around 25°C more widely across eastern and central England. Northern England and sheltered parts of Northern Ireland should also