VAAC CSV files
Modelled volcanic ash concentration forecasts are available below. Volcanic Ash Forecasts are only available from London VAAC for volcanoes erupting within the London VAAC area.
Note all CSV data is based on geographical coordinated datum WGS84, and assume projection onto Transverse Mercator with limits longitude: -77.5, 155.5 and latitude: 21, 81.5. Representation to other standards or different projections will result in deviations from the intended boundaries. Data is degrees, minutes and seconds.
Please refer to national NOTAMs for definitive boundaries of no-fly areas.