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Alphanumeric code format Aerodrome forecast Tropical cyclone advisory centre Co-ordinated Universal Time Volcanic ash advisory centre -iii- WAFC WAFS WIFS WG-MOG WMO WIFS Provider WIFS Provider State ZIP World Area Forecast Centre (London and Washington) World Area Forecast System WAFS internet file service

Provider State ZIP World Area Forecast Centre (London and Washington) World Area Forecast System WAFS internet file service, operated by the United States. Meteorological Operations Group (reporting to METP) World Meteorological Organization United States National Weather Service Aviation Weather Center

below). Synoptic situation at 0000 UTC on 29 October 2008 A number of stations across the climate district of SE & Central S England reported a day of snow on 28/29 October 2008, including Reading University, Whiteknights (Berkshire), Hampstead (Greater London) and Odiham (Hampshire). The last

Changes to WAFS SIGWX Forecasts In January 2025 the World Area Forecast System (WAFS) SIGWX charts will be changing as the London and Washington World Area Forecast Centres (WAFCs) introduce multi-timestep SIGWX forecasts for the first time. What is new: • Forecasts will be produced for T+6, T+9, T

Aerodrome Forecast - TAF Decode Code element Example Decode Notes 1 Report type 2 Location 3 Date/Time of origin 4 Validity time 5 Wind TAF 'TAF' Name for a Terminal Aerodrome Forecast EGSS 'London Stansted' Station four-letter ICAO indicator 130500Z 130716 31015G25KT 6 Prevailing visibility

The London VAAC is an International Civil Aviation Organization (ICAO) designated centre, responsible for issuing advisories for volcanic eruptions originating in Iceland and the north-eastern corner of the North Atlantic.

The London VAAC is one of 9 Volcanic Ash Advisory Centres worldwide, and has specialist forecasters who produce volcanic ash advisories and guidance products using a combination of volcano data; satellite-based, ground-based and aircraft observations; weather forecast models and dispersion models

Progress report on machine learning for convective nowcasting Summary introduction This report provides a summary of the progress towards a new machine learning (ML) approach for generating a nowcast of convection over an extended London Terminal Manoeuvring Area (LTMA). The work presented gives

closed for the first time in their history. There were widespread reports of structural damage. Roofs were torn off several buildings, the top of a church spire in Wells, Somerset was blown down and the Millennium Dome in London was damaged. Thousands of trees were felled – including large mature

closed for the first time in their history. There were widespread reports of structural damage. Roofs were torn off several buildings, the top of a church spire in Wells, Somerset was blown down and the Millennium Dome in London was damaged. Thousands of trees were felled – including large mature

The Met Office, as WAFC London, is one of two World Area Forecast Centres, providing global upper wind, temperature, and SIGWX forecasts since 1984, in line with ICAO Annex 3. As one of nine VAACs, we issue volcanic ash advisories for Iceland and the northeastern Atlantic. We also operate Secure