A healthy observing system is vital for NWP. Observations are allowed to be used once their quality and impact are judged satisfactory. However the observing system is continuously evolving and it is important to monitor the quality and availability events. An  automatic warning system  is operated by ECMWF to flag data events that can potentially impact the quality of the analysis. Once flagged, events are investigated by scientists to evaluate the root cause and the potential impact. Actions are triggered when necessary. This interface provides a high level view of the status of the various of the observing system used at ECMWF. It uses a traffic light system to indicate the absence or presence of warnings. Additional details about each warning is available when selecting the data type in question. The interface is accessing the events automatically from ECMWF's observation events database. The last 24 hours status is shown by default but users can adjust the period if needed.

For each flagged anomaly, the automatic checking system assigns a severity level depending on how far statistics are from the expected values. When an anomaly persists over many data assimilation cycles the severity level is adjusted to highlight persistence.

The severity level categories:

SymbolDescription
⛔⛔⛔

Persistent anomaly in the severe category

Severe anomaly
✋✋✋Considerable persistent anomaly
Considerable anomaly
Slight anomaly

No anomalies detected


Observation Events Search

Showing events up to 2025-09-14 00 UTC for LWDA stream.

Period searched over is -24 hours prior to this time.

Satellites and Conventional Stations

StatusData Type

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 TanDEM-X GPSRO Global Height 22-24 Kmout of rangestdev_norm_fgdeparSlight1127015

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 HIMAWARI-9 AMV cloudy WV2 Wind Vector diff (m/s) Tropics Pressure layout of rangeobs_numberConsiderable1148058

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 NOAA-20 CRIS Radiances South pole Channel 117out of rangestdev_fgdeparSlight12136002
2025091312 NOAA-20 CRIS Radiances South pole Channel 119out of rangestdev_fgdeparSlight12136002
2025091312 NOAA-20 CRIS Radiances South pole Channel 140out of rangestdev_fgdeparSlight12136002
2025091312 NOAA-20 CRIS Radiances South pole Channel 144out of rangestdev_fgdeparSlight12136002
2025091312 NOAA-20 CRIS Radiances North pole Channel 1950out of rangestdev_fgdeparSlight12036002

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 METOP-C IASI Radiances North pole Channel 151out of rangestdev_fgdeparSevere12011003
2025091312 METOP-C IASI Radiances South pole Channel 3029out of rangestdev_fgdeparSlight112111003
2025091312 METOP-C IASI Radiances South pole Channel 3049out of rangestdev_fgdeparSlight512111003

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 51644out of rangeavg_fgdeparSeverely_persistent6016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 51656out of rangeavg_fgdeparSeverely_persistent8016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 51716out of rangeavg_fgdeparSeverely_persistent9016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 51747out of rangeavg_fgdeparSeverely_persistent5016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 51765out of rangeavg_fgdeparSeverely_persistent9016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 51811out of rangeavg_fgdeparSeverely_persistent9016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 53513out of rangeavg_fgdeparSeverely_persistent5016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 60147out of rangeavg_fgdeparSeverely_persistent8016001
2025091312 Automatic Land SYNOP 2m temperature (K) Station statid ID 89625out of rangeavg_fgdeparSeverely_persistent7016001
2025091312 Manual Land SYNOP Surface pressure (Pa) Station statid ID 47061out of rangeavg_fgdeparSeverely_persistent7016002
2025091312 Manual Land SYNOP Surface pressure (Pa) Station statid ID 68112out of rangeavg_fgdeparSeverely_persistent5016002
2025091312 Manual Land SYNOP RH2m (%) Station statid ID 38597out of rangeavg_fgdeparSeverely_persistent10016002
2025091312 Manual Land SYNOP RH2m (%) Station statid ID 38617out of rangeavg_fgdeparSeverely_persistent9016002
2025091312 Manual Land SYNOP RH2m (%) Station statid ID 38749out of rangeavg_fgdeparSeverely_persistent7016002
2025091312 Manual Land SYNOP RH2m (%) Station statid ID 38933out of rangeavg_fgdeparSeverely_persistent10016002
2025091312 Manual Land SYNOP 2m temperature (K) Station statid ID 38591out of rangeavg_fgdeparSeverely_persistent10016002
2025091312 Manual Land SYNOP 2m temperature (K) Station statid ID 38617out of rangeavg_fgdeparSeverely_persistent8016002
2025091312 Manual Land SYNOP 2m temperature (K) Station statid ID 72410out of rangeavg_fgdeparSeverely_persistent8016002
2025091312 Manual Land SYNOP 2m temperature (K) Station statid ID 89009out of rangeavg_fgdeparSeverely_persistent6016002
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI11588out of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI135dcout of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI135dcout of rangerms_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI15e4dout of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI19aabout of rangeavg_fgdeparSeverely_persistent5016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1abdbout of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1bc83out of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1df25out of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1e9a8out of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1f04dout of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1f541out of rangeavg_fgdeparSeverely_persistent6016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1f9acout of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP SNOW (cm) Station statid ID _MI1fb9bout of rangeavg_fgdeparSeverely_persistent5016076
2025091312 BUFR LAND SYNOP Surface pressure (Pa) Station statid ID 47061out of rangeavg_fgdeparSeverely_persistent9016076
2025091312 BUFR LAND SYNOP Surface pressure (Pa) Station statid ID _MI15e4dout of rangeavg_fgdeparSeverely_persistent11016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 38591out of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 38617out of rangeavg_fgdeparSeverely_persistent8016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 60147out of rangeavg_fgdeparSeverely_persistent8016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 60220out of rangeavg_fgdeparSeverely_persistent6016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 80234out of rangeavg_fgdeparSeverely_persistent7016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 89009out of rangeavg_fgdeparSeverely_persistent6016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 89504out of rangeavg_fgdeparSeverely_persistent5016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 89625out of rangeavg_fgdeparSeverely_persistent7016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID _MI13149out of rangeavg_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID _MI13149out of rangerms_fgdeparSeverely_persistent10016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID _MI165faout of rangeavg_fgdeparSeverely_persistent7016076
2025091312 BUFR LAND SYNOP 2m temperature (K) Station statid ID _MI16b4dout of rangeavg_fgdeparSeverely_persistent7016076

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID 3FLT5out of rangeavg_fgdeparSeverely_persistent11016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID 3FYP8out of rangeavg_fgdeparSeverely_persistent11016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID 9HA4766out of rangeavg_fgdeparSeverely_persistent7016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID 9M3466out of rangeavg_fgdeparSeverely_persistent6016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID 9V7524out of rangeavg_fgdeparSeverely_persistent12016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID C6HZ9out of rangeavg_fgdeparSeverely_persistent10016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID C6HZ9out of rangerms_fgdeparSeverely_persistent10016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID C6HZ9out of rangeavg_pgeSeverely_persistent10016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID HPZBout of rangeavg_fgdeparSeverely_persistent6016074
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Station statid ID C6TE5out of rangeavg_fgdeparSeverely_persistent13016074
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Station statid ID C6TE5out of rangeavg_pgeSeverely_persistent10016074
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Station statid ID HPZBout of rangeavg_fgdeparSeverely_persistent7016074
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Station statid ID OWJG2out of rangeavg_fgdeparSeverely_persistent17016074
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Station statid ID OWJG2out of rangerms_fgdeparSeverely_persistent9016074
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Station statid ID OWJG2out of rangeavg_pgeSeverely_persistent12016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID ONLAout of rangeavg_fgdeparSeverely_persistent9016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID ONLAout of rangerms_fgdeparSeverely_persistent9016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID ONLAout of rangeavg_pgeSeverely_persistent9016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID ONLWout of rangeavg_fgdeparSeverely_persistent6016074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID OUHC2out of rangeavg_fgdeparSeverely_persistent9016074

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 ROCOB TEMP SNOW (cm) Station statid ID _SNU4acbout of rangeavg_fgdeparSeverely_persistent8016025

⛔⛔⛔

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 METAR RH2m (%) Station statid ID HETRout of rangeavg_fgdeparSeverely_persistent5016004
2025091312 METAR RH2m (%) Station statid ID SBESout of rangeavg_fgdeparSeverely_persistent7016004
2025091312 METAR 2m temperature (K) Station statid ID MMGAout of rangeavg_fgdeparSeverely_persistent10016004
2025091312 METAR 2m temperature (K) Station statid ID MMTLout of rangeavg_fgdeparSeverely_persistent10016004
2025091312 METAR 2m temperature (K) Station statid ID NZSPout of rangeavg_fgdeparSeverely_persistent6016004
2025091312 METAR 2m temperature (K) Station statid ID VECXout of rangeavg_fgdeparSeverely_persistent6016004

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 WIGOS AMDAR Wind Vector diff (m/s) Pressure layer 300-600 (hPa) Statiout of rangeavg_fgdeparSeverely_persistent5016082

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 Land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station statid ID 16out of rangeavg_fgdeparSeverely_persistent6016022
2025091312 Land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station statid ID 41out of rangeavg_fgdeparSeverely_persistent9016022
2025091312 Land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station statid ID 42out of rangeavg_fgdeparSeverely_persistent5016022
2025091312 Land TEMP RH2m (%) Station statid ID 48327out of rangeavg_fgdeparSeverely_persistent6016022
2025091312 Land TEMP 2m temperature (K) Station statid ID 80371out of rangeavg_fgdeparSeverely_persistent5016022
2025091312 Land TEMP 2m temperature (K) Station statid ID 89625out of rangeavg_fgdeparSeverely_persistent7016022
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 600-900 (hPa) Station staout of rangeavg_fgdeparSeverely_persistent5016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 600-900 (hPa) Station staout of rangeavg_fgdeparSeverely_persistent8016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 600-900 (hPa) Station staout of rangeavg_fgdeparSeverely_persistent7016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stout of rangeavg_fgdeparSeverely_persistent9016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stout of rangerms_fgdeparSeverely_persistent7016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stout of rangeavg_fgdeparSeverely_persistent5016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stout of rangeavg_fgdeparSeverely_persistent7016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stout of rangeavg_fgdeparSeverely_persistent8016045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stout of rangeavg_fgdeparSeverely_persistent5016045

Conventional Over Large Areas

StatusData Type
⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 BUFR LAND SYNOP Surface pressure (Pa) WMO BLOCK 10out of rangeobs_numberSeverely_persistent81016076
2025091312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 10out of rangeobs_numberSeverely_persistent81016076
2025091312 BUFR LAND SYNOP 2m temperature (K) WMO BLOCK 10out of rangeobs_numberSeverely_persistent81016076
2025091312 BUFR LAND SYNOP RH2m (%) WMO BLOCK 10out of rangeobs_numberSevere41016076
2025091312 Automatic Land SYNOP 2m temperature (K) WMO BLOCK 41out of rangeobs_numberSlight44116001
2025091312 Automatic Land SYNOP 2m temperature (K) Indian Oceanout of rangeobs_numberSlight111116001
2025091312 Automatic Land SYNOP RH2m (%) WMO BLOCK 41out of rangeobs_numberSlight4116001
2025091312 Manual Land SYNOP Surface pressure (Pa) South Est Pacificout of rangeobs_numberSlight410816002
2025091312 Manual Land SYNOP Surface pressure (Pa) East pacific Tropical areaout of rangeobs_numberSlight11716002
2025091312 Manual Land SYNOP 2m temperature (K) South Est Pacificout of rangeobs_numberSlight310816002
2025091312 Manual Land SYNOP 2m temperature (K) East pacific Tropical areaout of rangeobs_numberSlight111716002

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 BUFR SHIP SYNOP Wind Vector diff (m/s) Indian Ocean Tropical areaout of rangeobs_numberConsiderable111816074
2025091312 BUFR SHIP SYNOP Surface pressure (Pa) North poleout of rangeobs_numberSlight12016074

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 High Reso sea TEMP All layers North East Pacificmissingobs_numberSevere10616046

Date/TimeReport DescriptionEvent TypeAnomaly TypeSeverityAlarm FrequencyAreaReport TypePlot
2025091312 ADS-C Wind Vector diff (m/s) Pressure layer 600-900 (hPa) North East out of rangeobs_numberSlight10616089
2025091312 ADS-C Wind Vector diff (m/s) Pressure layer 600-900 (hPa) Tropicsout of rangeobs_numberSlight11416089

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2025091312 High Reso land TEMP Temperature (k) Pressure layer 0-300 (hPa) WMO BLout of rangeobs_numberSevere23516045
2025091312 High Reso land TEMP Temperature (k) Pressure layer 0-300 (hPa) WMO BLout of rangeobs_numberSevere7416045
2025091312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 300-600 (hPout of rangeobs_numberSevere2716045
2025091312 High Reso land TEMP All layers WMO BLOCK 76missingobs_numberSevere7616045
2025091312 Land TEMP Temperature (k) Pressure layer 0-300 (hPa) WMO BLOCK 44out of rangeobs_numberSlight34416022
2025091312 Land TEMP Wind Vector diff (m/s) Pressure layer 0-300 (hPa) WMO BLOCKout of rangeobs_numberSlight12616022
2025091312 Land TEMP Wind Vector diff (m/s) Pressure layer 0-300 (hPa) WMO BLOCKout of rangeobs_numberSlight39716022
2025091312 Land TEMP Wind Vector diff (m/s) Pressure layer 300-600 (hPa) WMO BLOout of rangeobs_numberSlight54016022
2025091312 High Reso land TEMP Temperature (k) Pressure layer 0-300 (hPa) WMO BLout of rangeobs_numberSlight2816045
2025091312 High Reso land TEMP Temperature (k) Pressure layer 0-300 (hPa) West pout of rangeobs_numberSlight11616045
2025091312 High Reso land TEMP Temperature (k) Pressure layer 0-300 (hPa) South out of rangeobs_numberSlight112116045
2025091312 High Reso land TEMP Temperature (k) Pressure layer 300-600 (hPa) WMO out of rangeobs_numberSlight5216045
2025091312 High Reso land TEMP Temperature (k) Pressure layer 300-600 (hPa) WMO out of rangeobs_numberSlight8316045
2025091312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 600-900 (hPout of rangeobs_numberSlight2716045
2025091312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 600-900 (hPout of rangeobs_numberSlight23416045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 300-600 (hPa) WMO BLOCK 5out of rangeobs_numberSlight5216045
2025091312 High Reso land TEMP Q (g/kg) Pressure layer 300-600 (hPa) Alantic Troout of rangeobs_numberSlight11516045






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