The HCXR70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) VORTICITY 700 HPA)
The HCXL70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (L): 84 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 84 (GLOBAL MODEL) VORTICITY 700 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 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 HCXH25 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 (H25): 250 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) VORTICITY 250 HPA)
The HCXK92 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (K): 72 hours forecast T1ii (H92): 925 hPa (Remarks from Volume-C: H+ 72 (GLOBAL MODEL) VORTICITY 925 HPA)
The HCXW92 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (W): Not assigned T1ii (H92): 925 hPa (Remarks from Volume-C: H+ 54 (GLOBAL MODEL) VORTICITY 925 HPA)
The HCXP25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (P): 132 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 132 (GLOBAL MODEL) VORTICITY 250 HPA)
The HCXG92 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H92): 925 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) VORTICITY 925 HPA)
The HCXX25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HC): Vorticity A1 (X): Global Area (area not definable) A2 (X): Not assigned T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) VORTICITY 250 HPA)