The HVXP50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (P): 132 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 132 (GLOBAL MODEL) WIND COMPONENT 500 HPA)

The HRXG50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) RELATIVE HUMIDITY 500 HPA)

The HRXA50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (A): Analysis (00 hour) T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 00 (GLOBAL MODEL) RELATIVE HUMIDITY 500 HPA)

The HVXC50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (C): 12 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 12 (GLOBAL MODEL) WIND COMPONENT 500 HPA)

The HVXN50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (N): 108 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 108 (GLOBAL MODEL) WIND COMPONENT 500 HPA)

The HOXP50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (P): 132 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 132 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HHXI50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) HEIGHT 500 HPA)

The HTXX50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (X): Not assigned T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) TEMPERATURE 500 HPA)

The HRXS50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (S): 168 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 168 (GLOBAL MODEL) RELATIVE HUMIDITY 500 HPA)

The HHXJ50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (J): 60 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 60 (GLOBAL MODEL) HEIGHT 500 HPA)