6516 kHz USB 6.516 MHz USB
OM talking about wind conditions, several f-bombs heard, salty language. Maybe yachtmen or sailors? SIO 444 on one of the stations...lots of QRM from a nearby data signal on 6518 kHz
"good luck in your travels" and "you won't be on the next case" at 2150 UTC
OM talking about weather conditions for sailing, "its gonna be nice" and then "its not gonna be nice" - sounds like one side of a QSO or telephone call, possibly a half-duplex split frequency QSO....could be fishermen - can only hear one side of the QSO
2155 UTC - more fuckin' this and fuckin' that - language and operating procedure reminds me of the Gloucestermen previously heard on 6212 USB, 6095 USB and 69xx frequencies?
6516 kHz is ITU channel 606, paired with HF-SSB calling/distress frequency 6215 kHz.