AirSigmetJSON

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/noaa/main/json-schema/noaa-aviation-airsigmetjson.json",
  "title": "AirSigmetJSON",
  "description": "NOAA Aviation Weather API schema for AirSigmetJSON",
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "icaoId": {
        "type": "string",
        "examples": [
          "KKCI"
        ]
      },
      "alphaChar": {
        "type": "string",
        "examples": [
          "W"
        ]
      },
      "seriesId": {
        "type": "string",
        "examples": [
          "NOVEMBER 7"
        ]
      },
      "receiptTime": {
        "type": "string",
        "description": "Time received by AWC",
        "examples": [
          "2025-09-27T11:48:24.974000+00:00"
        ]
      },
      "creationTime": {
        "type": "string",
        "description": "Issuance time",
        "examples": [
          "2025-09-27T11:55:00.000Z8"
        ]
      },
      "validTimeFrom": {
        "type": "integer",
        "examples": [
          1758974100
        ]
      },
      "validTimeTo": {
        "type": "integer",
        "examples": [
          1758981300
        ]
      },
      "airSigmetType": {
        "type": "string",
        "description": "Product type (always SIGMET)",
        "enum": [
          "SIGMET"
        ]
      },
      "hazard": {
        "type": "string",
        "description": "Hazard type",
        "examples": [
          "CONVECTIVE"
        ]
      },
      "qualifier": {
        "type": "string",
        "examples": [
          "OCNL"
        ]
      },
      "altitudeHi1": {
        "type": "integer",
        "examples": [
          35000
        ]
      },
      "altitudeHi2": {
        "type": "integer",
        "examples": [
          35000
        ]
      },
      "altitudeLo1": {
        "type": "integer"
      },
      "altitudeLo2": {
        "type": "integer"
      },
      "movementDir": {
        "type": "integer",
        "examples": [
          90
        ]
      },
      "movementSpd": {
        "type": "integer",
        "examples": [
          10
        ]
      },
      "postProcessFlag": {
        "type": "integer",
        "examples": [
          10
        ]
      },
      "severity": {
        "type": "integer",
        "examples": [
          5
        ]
      },
      "rawAirSigmet": {
        "type": "string",
        "description": "Raw product",
        "examples": [
          "WSUS33 KKCI 271155\\nSIGW \\nCONVECTIVE SIGMET 24W\\nVALID UNTIL 1355Z\\nAZ CA\\nFROM 10SSW EED-30NNE BZA-50S TRM-30NNW TRM-10SSW EED\\nAREA TS MOV FROM 09010KT. TOPS TO FL350.\\n\\nOUTLOOK VALID 271355-271755\\nFROM BCE-RSK-60SSW SJN-BZA-HEC-BCE\\nWST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM\\nPREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS."
        ]
      },
      "coords": {
        "type": "array",
        "items": {
          "type": "object",
          "parameters": {
            "lat": {
              "type": "number"
            },
            "lon": {
              "type": "number"
            }
          }
        }
      }
    }
  }
}