Metadata about production center and base time of the analysis and/or forecast Information about the NWP model producing the analysis or forecast Information about the ensemble prediction system Data content of the analysis or forecast. The type can be 'analysis', 'forecast' or 'ensembleForecast' Normally a file would have only one type of data but in some cases it may be desirable to have both an analysis and a forecast. Several disturbances (cyclones) can be included in a single data element. Data on a particular storm (disturbance) Basin in which the storm is located at analysis time. Either 2-letter abbreviation or full words are acceptable. Position of a disturbance at a particular time Data describing the storm's development and status Development status of a disturbance (ATCF codes). The spelled out words correspond to the 2-letter abbreviations. Either way of representing development is acceptable. Data describing the storm's maximum sustained wind speed Radial distance at which a threshold value is met. This can be within a particular sector or around the full circle. Sector must be specified (NEQ, SWQ, etc., or AAA for full circle). Default sector is "AAA" Data describing the pressure and radius of the last closed isobar Subregion within the basin. Either 1-letter abbreviation or full words are acceptable. Data describing the storm's speed and direction Storm depth. Either 1-letter abbreviation or full words are acceptable. Maximum wave height Data describing the storm's maximum precipitation Dominant precipitation type. If neither "rain" nor "snow" then use "mixed" Radii at which certain thresholds in the winds or seas are met. Data on winds within sectors Data on wave heights within sectors Data on cyclone phase from Hart et al. 1993