The SAYG31 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SA): Aviation routine reports A1A2 (YG): Serbia (Remarks from Volume-C: NilReason)
The SAEU31 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SA): Aviation routine reports A1A2 (EU): Europe (Remarks from Volume-C: NilReason)
The SPEU31 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SP): Special aviation weather reports A1A2 (EU): Europe (Remarks from Volume-C: NilReason)
The SPGR91 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SP): Special aviation weather reports A1A2 (GR): Greece (Remarks from Volume-C: NilReason)
The SAGL32 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SA): Aviation routine reports A1A2 (GL): Greenland (Remarks from Volume-C: NilReason)