def format_record_identifier(ri):
    """Returns a description about an entry's record_identifier.

    Definitions/interpretations found in hurdat2-format pdf found online.
    """
    if ri == "L": return "Landfall"
    elif ri == "W": return "Maximum sustained wind speed"
    elif ri == "P": return "Minimum in central pressure"
    elif ri == "I": return "An intensity peak in terms of both pressure and wind"
    elif ri == "C": return "Closest approach to a coast, not followed by a landfall"
    elif ri == "S": return "Change of status of the system"
    elif ri == "G": return "Genesis"
    elif ri == "T": return "Provides additional detail on the track (position) of the cyclone"
    else: return "* No Description Available *"