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• January weather extremes: a look back records from past events

  : 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_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

• Week ahead: A brighter start, but turning much wetter

  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 knowledge Deep Dive: High-pressure

• 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

• 10‑day trend: Hints of change, but further rain likely

  is available for iPhone 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

• 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

• 10-day trend: largely settled into the weekend

  weather: settled, dry and warm for many London Marathon forecast: a cool start with sunny spells 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 disaster advanced dispersion science Week

• Week ahead forecast: Wet weather continues, but signs of change for Christmas

  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 knowledge Deep Dive

• caa_verification-feb-2026.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

• Met Office week ahead: Wet, windy but with hints of change

  in warmer air to London and the south-east, where temperatures could climb to 23 or even 25°C, depending on wind orientation. However, conditions remain much less pleasant across north-western parts of the UK. READ MORE: Hurricanes, typhoons and tornadoes: What’s the difference? The jet stream