The HVXI85 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H85): 850 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) WIND COMPONENT 850 HPA)
The HVXL25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (L): 84 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 84 (GLOBAL MODEL) WIND COMPONENT 250 HPA)
The HVXO50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component 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) WIND COMPONENT 500 HPA)
The HVXI50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) WIND COMPONENT 500 HPA)
The HVXX70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (X): Not assigned T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) WIND COMPONENT 700 HPA)
The HVXS98 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (S): 168 hours forecast T1ii (H98): Air priorities for the Earth's surface (Remarks from Volume-C: H+ 168 (GLOBAL MODEL) WIND COMPONENT 10 METRES)
The HVXG30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) WIND COMPONENT 300 HPA)
The HVXQ30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (Q): 144 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 144 (GLOBAL MODEL) WIND COMPONENT 300 HPA)
The HVXG40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) WIND COMPONENT 400 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)