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 HPXH89 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HP): Pressure A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H89): Any parameter reduced to sea level (eg MSLP) (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) MEAN SEA LEVEL PRESSURE)

The HTXR98 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (R): 156 hours forecast (7 days) T1ii (H98): Air priorities for the Earth's surface (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) TEMPERATURE 2 METRES)

The HTXN30 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 (H30): 300 hPa (Remarks from Volume-C: H+ 108 (GLOBAL MODEL) TEMPERATURE 300 HPA)

The HTXB20 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (B): 6 hours forecast T1ii (H20): 200 hPa (Remarks from Volume-C: H+ 06 (GLOBAL MODEL) TEMPERATURE 200 HPA)

The HTXD70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 18 (GLOBAL MODEL) TEMERATURE 700 HPA)

The HTXG25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) TEMPERATURE 250 HPA)

The HTXE20 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (E): 24 hours forecast T1ii (H20): 200 hPa (Remarks from Volume-C: H+ 24 (GLOBAL MODEL) TEMPERATURE 200 HPA)

The HTXO70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature 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) TEMPERATURE 700 HPA)

The HUXP40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (P): 132 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 132 (GLOBAL MODEL) WIND COMPONENT 400 HPA)