The HOXS50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (S): 168 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 168 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXX70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (X): Not assigned T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) VERTICAL VELOCITY 700 HPA)

The HOXI50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXW50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (W): Not assigned T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 54 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXH50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXO50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (O): 120 hours forecast (5 days) T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 120 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXF50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (F): 30 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 30 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXG50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXL50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (L): 84 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 84 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)

The HOXR50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (R): 156 hours forecast (7 days) T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) VERTICAL VELOCITY 500 HPA)