The HGXM92 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HG): Divergence A1 (X): Global Area (area not definable) A2 (M): 96 hours forecast T1ii (H92): 925 hPa (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) DIVERGENCE 925 HPA)

The HCXH70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) VORTICITY 700 HPA)

The HCXO70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 120 (GLOBAL MODEL) VORTICITY 700 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)

The HCXW70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 54 (GLOBAL MODEL) VORTICITY 700 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)

The HCXX70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) VORTICITY 700 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 HCXK70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 72 (GLOBAL MODEL) VORTICITY 700 HPA)

The HQXJ85 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HQ): Wet bulb potential temperature A1 (X): Global Area (area not definable) A2 (J): 60 hours forecast T1ii (H85): 850 hPa (Remarks from Volume-C: H+ 60 (GLOBAL MODEL) POTENTIAL EQUIVALENT TEMPEATURE)