The HRXX30 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (X): Not assigned T1ii (H30): 300 hPa (Remarks from Volume-C: H+ 66 (GLOBAL MODEL) RELATIVE HUMIDITY 700 HPA)

The HRXB60 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (B): 6 hours forecast T1ii (H60): 600 hPa (Remarks from Volume-C: H+ 06 (GLOBAL MODEL) RELATIVE HUMIDITY 600 HPA)

The HRXR70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity 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) RELATIVE HUMIDITY 700 HPA)

The HRXM70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) RELATIVE HUMIDITY 700 HPA)

The HRXG60 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H60): 600 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) RELATIVE HUMIDITY 600 HPA)

The HRXG50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) RELATIVE HUMIDITY 500 HPA)

The HRXA70 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 (H70): 700 hPa (Remarks from Volume-C: H+ 00 (GLOBAL MODEL) RELATIVE HUMIDITY 700 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 HRXH85 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H85): 850 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) RELATIVE HUMIDITY 850 HPA)

The HRXC70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (C): 12 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 12 (GLOBAL MODEL) RELATIVE HUMIDITY 700 HPA)