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 2026-04-04 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
2026040312 TerraSAR-X GPSRO Global Height 28-30 Kmout of rangeavg_norm_fgdeparSevere61127010
2026040312 TerraSAR-X GPSRO SHem ExtTrop Height 34-36 Kmout of rangeavg_norm_fgdeparSlight51197010

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 DMSP-18 SSMIS Global All Channelsmissingobs_numberSevere11213003

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 Automatic Land SYNOP 2m Specific humidity Station statid ID 42792out of rangeavg_fgdeparSeverely_persistent10016001
2026040312 Automatic Land SYNOP 2m Specific humidity Station statid ID 42792out of rangerms_fgdeparSeverely_persistent10016001
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42469out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42483out of rangerms_fgdeparSeverely_persistent9016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42661out of rangeavg_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42661out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42674out of rangeavg_fgdeparSeverely_persistent10016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42674out of rangerms_fgdeparSeverely_persistent10016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42770out of rangeavg_fgdeparSeverely_persistent10016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42770out of rangerms_fgdeparSeverely_persistent10016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42937out of rangeavg_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42937out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42946out of rangeavg_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 42946out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 43083out of rangeavg_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 43083out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 43133out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 48924out of rangeavg_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 48924out of rangerms_fgdeparSeverely_persistent8016002
2026040312 Manual Land SYNOP 2m Specific humidity Station statid ID 48925out of rangerms_fgdeparSeverely_persistent10016002
2026040312 BUFR LAND SYNOP Surface pressure (Pa) Station statid ID 08486out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP Surface pressure (Pa) Station statid ID 14648out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP Surface pressure (Pa) Station statid ID 16197out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 38470out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 41031out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42361out of rangeavg_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42361out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42479out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42557out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42587out of rangeavg_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42587out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42715out of rangeavg_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42715out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42754out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42779out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42867out of rangeavg_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42867out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42871out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42883out of rangeavg_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 42883out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 43233out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 43338out of rangeavg_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 43338out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48048out of rangeavg_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48048out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48052out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48074out of rangeavg_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48074out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48075out of rangeavg_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48075out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48307out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48330out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48358out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48363out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48390out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48400out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48402out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48425out of rangeavg_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48425out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48431out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48451out of rangeavg_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48451out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48968out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 48976out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 76382out of rangeavg_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 76382out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 76491out of rangeavg_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 76491out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m Specific humidity Station statid ID 87405out of rangerms_fgdeparSeverely_persistent8016076
2026040312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 23914out of rangerms_fgdeparSeverely_persistent9016076
2026040312 BUFR LAND SYNOP 2m temperature (K) Station statid ID 36936out of rangerms_fgdeparSeverely_persistent10016076
2026040312 BUFR LAND SYNOP 2m temperature (K) Station statid ID _MI11f1bout of rangerms_fgdeparSeverely_persistent9016076

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 SHIP Surface pressure (Pa) Station statid ID HPMEYWQout of rangerms_fgdeparSeverely_persistent8016008
2026040312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID 3E4612out of rangerms_fgdeparSeverely_persistent10016074
2026040312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID HPMEYWQout of rangerms_fgdeparSeverely_persistent9016074
2026040312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID OYAU2out of rangerms_fgdeparSeverely_persistent7016074
2026040312 BUFR SHIP SYNOP Surface pressure (Pa) Station statid ID ZWAL78Wout of rangerms_fgdeparSeverely_persistent7016074

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 European Wind Profiler Wind Vector diff (m/s) Pressure layer 0-300 (hout of rangeavg_fgdeparSeverely_persistent5016017
2026040312 European Wind Profiler Wind Vector diff (m/s) Pressure layer 0-300 (hout of rangerms_fgdeparSeverely_persistent5016017

⛔⛔⛔

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 METAR 2m Specific humidity Station statid ID KASGout of rangerms_fgdeparSeverely_persistent8016004
2026040312 METAR 2m Specific humidity Station statid ID VCBIout of rangerms_fgdeparSeverely_persistent9016004
2026040312 METAR 2m Specific humidity Station statid ID VEJSout of rangerms_fgdeparSeverely_persistent8016004
2026040312 METAR 2m temperature (K) Station statid ID OEMNout of rangeavg_fgdeparSeverely_persistent8016004
2026040312 METAR 2m temperature (K) Station statid ID OEMNout of rangerms_fgdeparSeverely_persistent8016004
2026040312 Automatic METAR 2m Specific humidity Station statid ID KX21out of rangerms_fgdeparSeverely_persistent9016065
2026040312 Automatic METAR 2m temperature (K) Station statid ID LIVEout of rangeavg_fgdeparSeverely_persistent10016065
2026040312 Automatic METAR 2m temperature (K) Station statid ID LIVEout of rangerms_fgdeparSeverely_persistent10016065

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 WIGOS AMDAR Temperature (k) Pressure layer 300-600 (hPa) Station statout of rangeavg_pgeSeverely_persistent9016082
2026040312 Mode-S Wind Vector diff (m/s) Pressure layer 0-300 (hPa) Station statout of rangerms_fgdeparSeverely_persistent7016088

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 High Reso land TEMP Temperature (k) Pressure layer 900-1200 (hPa) StaSignificant change of positionavg_lonSeverely_persistent5016045
2026040312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Station stSignificant change of positionavg_lonSeverely_persistent5016045

Conventional Over Large Areas

StatusData Type
⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 Manual Land SYNOP 2m Specific humidity WMO BLOCK 42out of rangerms_fgdeparSeverely_persistent54216002
2026040312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 28out of rangeavg_fgdeparSeverely_persistent52816076
2026040312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 28out of rangerms_fgdeparSeverely_persistent52816076
2026040312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 35out of rangerms_fgdeparSeverely_persistent53516076
2026040312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 48out of rangerms_fgdeparSeverely_persistent64816076
2026040312 Automatic Land SYNOP 2m Specific humidity WMO BLOCK 34out of rangerms_fgdeparSevere23416001
2026040312 Manual Land SYNOP RH2m (%) WMO BLOCK 61out of rangeobs_numberSevere26116002
2026040312 Manual Land SYNOP 2m Specific humidity WMO BLOCK 43out of rangerms_fgdeparSevere34316002
2026040312 Manual Land SYNOP 2m Specific humidity Indian Oceanout of rangerms_fgdeparSevere11116002
2026040312 Manual Land SYNOP 2m Specific humidity Indian Ocean Tropical areaout of rangerms_fgdeparSevere111816002
2026040312 Manual Land SYNOP 2m temperature (K) WMO BLOCK 65missingobs_numberSevere6516002
2026040312 BUFR LAND SYNOP 2m Specific humidity North East Pacificout of rangerms_fgdeparSevere410616076
2026040312 BUFR LAND SYNOP 2m Specific humidity Tropicsout of rangerms_fgdeparSevere411416076
2026040312 BUFR LAND SYNOP 2m Specific humidity East pacific Tropical areaout of rangerms_fgdeparSevere411716076
2026040312 Manual Land SYNOP RH2m (%) WMO BLOCK 61out of rangeavg_fgdeparConsiderable6116002
2026040312 BUFR LAND SYNOP RH2m (%) WMO BLOCK 61out of rangerms_fgdeparConsiderable6116076
2026040312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 24out of rangeavg_fgdeparSlight22416076
2026040312 BUFR LAND SYNOP 2m Specific humidity WMO BLOCK 35out of rangeavg_fgdeparSlight13516076

Date/TimeReport DescriptionEvent TypeAnomaly TypeSeverityAlarm FrequencyAreaReport TypePlot
2026040312 AMDAR All layers South Atlanticmissingobs_numberSevere12216029
2026040312 WIGOS AMDAR Q (g/kg) Pressure layer 900-1200 (hPa) Tropicsout of rangerms_fgdeparSevere11416082
2026040312 WIGOS AMDAR Q (g/kg) Pressure layer 900-1200 (hPa) Alantic Tropical aout of rangerms_fgdeparSevere11516082

⛔⛔⛔

Date/TimeReport DescriptionEvent TypeAnomaly
Type
SeverityAlarm FrequencyAreaReport TypePlot
2026040312 High Reso land TEMP Temperature (k) Pressure layer 600-900 (hPa) Indiout of rangeobs_numberSeverely_persistent511816045
2026040312 Land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Indian Oceanout of rangerms_fgdeparSevere11116022
2026040312 Land TEMP All layers West pacific Tropical areamissingobs_numberSevere11616022
2026040312 High Reso land TEMP Temperature (k) Pressure layer 600-900 (hPa) WMO out of rangeobs_numberSevere44316045
2026040312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 300-600 (hPout of rangeobs_numberSevere17016045
2026040312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 600-900 (hPout of rangeavg_fgdeparSevere14216045
2026040312 High Reso land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) WMO BLOCK out of rangeobs_numberSevere23116045
2026040312 High Reso land TEMP Temperature (k) All layers WMO BLOCK 17missingobs_numberSevere1716045
2026040312 High Reso land TEMP All layers WMO BLOCK 21missingobs_numberSevere2116045
2026040312 High Reso land TEMP All layers WMO BLOCK 40missingobs_numberSevere4016045
2026040312 High Reso land TEMP All layers WMO BLOCK 65missingobs_numberSevere6516045
2026040312 High Reso land TEMP Q (g/kg) All layers WMO BLOCK 17missingobs_numberSevere1716045
2026040312 High Reso land TEMP Temperature (k) Pressure layer 300-600 (hPa) WMO out of rangeobs_numberConsiderable44316045
2026040312 High Reso land TEMP Temperature (k) Pressure layer 600-900 (hPa) WMO out of rangeobs_numberConsiderable27016045
2026040312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 600-900 (hPout of rangeobs_numberConsiderable7016045
2026040312 Land TEMP Q (g/kg) Pressure layer 900-1200 (hPa) Globalout of rangerms_fgdeparSlight11216022
2026040312 High Reso land TEMP Temperature (k) Pressure layer 300-600 (hPa) Nortout of rangeavg_fgdeparSlight10616045
2026040312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 300-600 (hPout of rangeavg_fgdeparSlight4216045
2026040312 High Reso land TEMP Wind Vector diff (m/s) Pressure layer 300-600 (hPout of rangeavg_fgdeparSlight5816045






1 Comment

  1. For feedback on this application please contact ECMWF Support Portal