The HCXI25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) VORTICITY 250 HPA)
The HCXD92 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (D): 18 hours forecast T1ii (H92): 925 hPa (Remarks from Volume-C: H+ 18 (GLOBAL MODEL) VORTICITY 925 HPA)
The HCXS70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (S): 168 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 168 (GLOBAL MODEL) VORTICITY 700 HPA)
The HCXM25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (M): 96 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) VORTICITY 250 HPA)
The HCXR25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (R): 156 hours forecast (7 days) T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) VORTICITY 250 HPA)
The HCXH92 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H92): 925 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) VORTICITY 925 HPA)
The HCXC70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (C): 12 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 12 (GLOBAL MODEL) VORTICITY 700 HPA)
The HCXI70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) VORTICITY 700 HPA)
The HCXO25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (O): 120 hours forecast (5 days) T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 120 (GLOBAL MODEL) VORTICITY 250 HPA)
The HCXN70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (N): 108 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 108 (GLOBAL MODEL) VORTICITY 700 HPA)