The HHXE40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (E): 24 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 24 (GLOBAL MODEL) HEIGHT 400 HPA)

The HTXD40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (D): 18 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 18 (GLOBAL MODEL) TEMPERATURE 400 HPA)

The HHXO40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (O): 120 hours forecast (5 days) T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 120 (GLOBAL MODEL) HEIGHT 400 HPA)

The HVXW40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (W): Not assigned T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 54 (GLOBAL MODEL) WIND COMPONENT 400 HPA)

The HTXN40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (N): 108 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 108 (GLOBAL MODEL) TEMPERATURE 400 HPA)

The HTXJ40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (J): 60 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 60 (GLOBAL MODEL) TEMPERATURE 400 HPA)

The HVXC40 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 (H40): 400 hPa (Remarks from Volume-C: H+ 12 (GLOBAL MODEL) WIND COMPONENT 400 HPA)

The PWZE40 TTAAii Data Designators decode as: T1 (P): Pictorial information (Binary coded) T1T2 (PW): Wind A2 (E): 24 hours forecast T1ii (P40): 400 hPa (Remarks from Volume-C: WAFS W+T H+24 FL 240 (ICAO D))

The HVXR40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (R): 156 hours forecast (7 days) T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) WIND COMPONENT 400 HPA)

The HHXR40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (R): 156 hours forecast (7 days) T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) HEIGHT 400 HPA)