The HUXB30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (B): 6 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 06 (GLOBAL MODEL) WIND COMPONENT 300 HPA)

The HRXQ30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (Q): 144 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 144 (GLOBAL MODEL) RELATIVE HUMIDITY 700 HPA)

The HUXO30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (O): 120 hours forecast (5 days) T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 120 (GLOBAL MODEL) WIND COMPONENT 300 HPA)

The HTXH30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) TEMERATURE 300 HPA)

The HHXG30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) HEIGHT 300 HPA)

The HVXX30 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 (H30): 300 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) WIND COMPONENT 300 HPA)

The PHNA30 TTAAii Data Designators decode as: T1 (P): Pictorial information (Binary coded) T1T2 (PH): Height A1 (N): Northern hemisphere A2 (A): Analysis (00 hour) T1ii (P30): 300 hPa (Remarks from Volume-C: 300 hPa H with plotted observations)

The HUXL30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (L): 84 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 84 (GLOBAL MODEL) WIND COMPONENT 300 HPA)

The HRXK30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (K): 72 hours forecast T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 72 (GLOBAL MODEL) RELATIVE HUMIDITY 700 HPA)

The HRXA30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (A): Analysis (00 hour) T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 00 (GLOBAL MODEL) RELATIVE HUMIDITY 700 HPA)