If you want to put the day first, use the month abbreviation or name instead of month number. South and west are negative. This information is not parsed, but is displayed at certain times. Use this field for things like wind speed, whether the storm is a depression, tropical storm, or hurricane, central pressure, whether the observation is from aircraft of satellite, or whatever you like. It is O.K. to leave this field blank.
Observations can be in any order.
This file can be converted to smaller, more portable formats with xv, Imagemagik convert, or netpbm. If the projection is Mercator, the view can be changed by dragging. For the other projections, double clicking a point makes that location the new center of the map. Use this menu to zoom in and out. Select whatever is appropriate for the current scale and display pixel size.