Observations (every 15 minutes) at road weather stations across Germany measure various meteorological parameters as for example temperature, precipation etc..
---- The bulletin collects TEXT reports. ---- The FPLV30 TTAAii Data Designators decode (2) as: T1 (F): Forecast. T2 (P): Public. A1A2 (LV): Latvia. (2: Refer to WMO No.386 - Manual on the GTS - Attachment II.5) ---- WMO No.9 - Volume C1 'Remarks' field: WEATHER FORECAST
relative humidity measurements at DWD stations in the Regional Basic Synoptic Network of the WMO, plus additional stations from the so called "Global Dataset" of DWD