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August 2025 late GRIB2 98.4% 98.3% 99.4% 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 ) The table below shows the percentage of complete
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
in the 1961-1990 averaging period only London and Hampshire recorded six or more days over 28°C, by the latest decade (2014-2023) this has spread across much of England and Wales, with frequencies in the south east increasing to over 12 days each year in many counties. The expansion of the area
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
on 5 January 2025 as anomalies relative to the January 1991-2020 monthly average. Temperatures remained below freezing across northern Scotland on 5th, with, for example, a maximum of -2.3°C at Aviemore, Inverness-shire, but a high of 13.4°C at Benson, Oxfordshire and Heathrow, Greater London
above the threshold for a heatwave, which is 28°C in London and lower elsewhere. Several station records in Scotland and Northern Ireland were broken, with some dating back more than 50 years. The highest temperature recorded during the heatwave was 35.8°C in Faversham on 1 July. Interestingly
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
. As a global community we are committed to further warming and impacts, even if we were to reach Net Zero globally tomorrow. We have failed to reduce emissions quickly enough and are failing to adequately manage risk. Recent research at the London School of Economics and Political Science (LSE) considered
20th the focus shi ed to northern and western parts with Northern Ireland and the Manchester area experiencing heavy snowfalls. On Monday 21st, areas west of London were badly affected, while on Tuesday 22nd and Wednesday 23rd icy conditions caused further problems. On the 23rd, rain falling
-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. September 2025 October 2025 November 2025 December 2025
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