TF: Not telling you to suck eggs but I dont know you experience level:
6 Stat Miles is v. close to 10km - therefore,
P6SM on a US TAF is equiv to 9999 on a UK TAF
Another difference you see on Russian/China TAFs is: 070/4MS
Wind 070 @ 4 Metres per Second. (Top tip; multiply it by 2...eg: 4MS = 8kts approx)
Regards