The WSTU31 TTAAii Data Designators decode as: T1 (W): Warnings T1T2 (WS): SIGMET A1A2 (TU): Turkey (Remarks from Volume-C: NilReason)
The WSTU10 TTAAii Data Designators decode as: T1 (W): Warnings T1T2 (WS): SIGMET A1A2 (TU): Turkey (Remarks from Volume-C: NilReason)