The HRXM50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (M): 96 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) RELATIVE HUMIDITY 500 HPA)

The HVXN10 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 (H10): 100 hPa (Remarks from Volume-C: H+ 108 (GLOBAL MODEL) WIND COMPONENT 100 HPA)

The HVXR98 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 (H98): Air priorities for the Earth's surface (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) WIND COMPONENT 10 METRES)

The HUXK60 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (K): 72 hours forecast T1ii (H60): 600 hPa (Remarks from Volume-C: H+ 72 (GLOBAL MODEL) WIND COMPONENT 600 HPA)

The HPXB89 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HP): Pressure A1 (X): Global Area (area not definable) A2 (B): 6 hours forecast T1ii (H89): Any parameter reduced to sea level (eg MSLP) (Remarks from Volume-C: H+ 06 (GLOBAL MODEL) MEAN SEA LEVEL PRESSURE)

The HHXR70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 156 (GLOBAL MODEL) HEIGHT 700 HPA)

The HTXM25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (M): 96 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) TEMPERATURE 250 HPA)

The HUXI25 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H25): 250 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) WIND COMPONENT 250 HPA)

The HUXS20 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (S): 168 hours forecast T1ii (H20): 200 hPa (Remarks from Volume-C: H+ 168 (GLOBAL MODEL) WIND COMPONENT 200 HPA)

The HTXI30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (I): 48 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 48 (GLOBAL MODEL) TEMERATURE 300 HPA)