ECMWF is augmenting the tropical cyclone (TC) track products that it makes available for dissemination in BUFR format. We now include the tracks of tropical cyclones that develop (i.e. undergo genesis) during the forecast integrations (the 'Genesis category'), as a supplement to the tracks that we already provide for existing tropical cyclones, i.e. where there is an official observation TC report at the initial time of the forecast time (the 'Pre-existing category'). The track products are provided for both high-resolution (HRES) and ensemble (ENS) forecasts out to 10 days ahead.
ECMWF's TC track products contain the following variables: time, position (latitude/longitude in degrees), central pressure (hPa), intensity (i.e. maximum 10m wind speed in m/s in a 750 x 750km box centred on the TC location) and position of that 10m wind speed maximum (latitude/longitude). These are now provided for every tropical cyclone identified and tracked in every ENS forecast, and in HRES.
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This change will be introduced with the 12 UTC cycle on Tuesday 10 November 2015.
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