DO.EWS.01 Alert

The GeoLocation shall be represented as a GeoJSON Feature object in accordance with the Open Geospatial Consortium (OGC) API Features standard. This object defines the spatial characteristics of the alert and provides a standardized structure for geospatial interoperability.

Normative Reference: OGC API Features – Part 1: Core / GeoJSON Feature Schema https://schemas.opengis.net/ogcapi/features/part1/1.0/openapi/schemas/featureGeoJSON.yaml

Attribute	Type	Cardinality	Description
id	DT.COM.02 string	0...1	Unique identifier of the alert feature.
type	DT.COM.02 string	0...1	Shall be set to "Feature" as defined by the GeoJSON specification.
geometry	DO.COM.06 GeoShape	0...1	GeoJSON geometry object representing the spatial extent of the hazard.
properties	DO.EWS.02 CapAlert	0...1	Container for non-spatial alert information aligned with CAP semantics.

{
  "type": "Feature",
  "id": "ALERT-2026-00001",

  "geometry": {
    "type": "MultiPolygon",
    "coordinates": [
      [
        [
          [35.45, 33.85],
          [35.55, 33.85],
          [35.55, 33.95],
          [35.45, 33.95],
          [35.45, 33.85]
        ]
      ]
    ]
  },

  "properties": {
    "capAlert": {
      "identifier": "ALERT-2026-00001",
      "sender": "ews.gov.lb",
      "sent": "2026-06-22T10:00:00Z",
      "status": "Actual",
      "msgType": "Alert",
      "source": "National Early Warning System",
      "scope": "Public",

      "info": [
        {
          "language": "en-US",
          "category": [
            "Met"
          ],
          "event": "Flash Flood",
          "responseType": [
            "Prepare"
          ],
          "urgency": "Immediate",
          "severity": "Severe",
          "certainty": "Likely",

          "headline": "Flash Flood Warning",
          "description": "Heavy rainfall may cause flash flooding.",
          "instruction": "Move to higher ground.",

          "effective": "2026-06-22T10:00:00Z",
          "expires": "2026-06-22T18:00:00Z",

          "area": [
            {
              "areaDesc": "Bekaa Governorate",

              "polygon": [
                "33.85,35.45 33.95,35.45 33.95,35.55 33.85,35.55 33.85,35.45"
              ],

              "geocode": [
                {
                  "valueName": "ADMIN_CODE",
                  "value": "LB-BI"
                }
              ]
            },
            {
              "areaDesc": "Baalbek District",

              "geocode": [
                {
                  "valueName": "SPMIS_DISTRICT_ID",
                  "value": "DISTRICT_101"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}