Becmg(becomming)
Tempo
Skc
Nsc
Sig Chart ( All Detail )
BECMG - weather will change between specified times
TEMPO - weather will temporarily be between specified times
SKC - skies Clear
NSC - No Significant Cloud
Sig Chart - Chart showing all significant weather relating to a region/flight (I'm not 100% on that one, but I think it is)
Hope that helps!
Wipeout