AviationWeather Domestic SIGMET

Decoded domestic SIGMET as returned by GET /api/data/airsigmet?format=json.

AviationWeatherGovernmentNOAANWSMETARTAFPIREPSIGMETAIRMETOpen DataPublic APIs

Properties

Name	Type	Description
airSigmetId	integer	Internal AWC identifier.
icaoId	string	Issuing center ICAO (typically KKCI for AWC).
receiptTime	string
validTimeFrom	integer	UNIX epoch start.
validTimeTo	integer	UNIX epoch end.
alphaChar	stringnull	Alpha designator (A-Z) for the SIGMET series.
hazard	string	Hazard type.
severity	stringnull	Severity (e.g. MOD, SEV).
rawAirSigmet	string	Raw SIGMET text.
altitudeHi1	integernull	Top altitude (feet).
altitudeLow1	integernull	Base altitude (feet).
movementDir	integernull	Movement direction (degrees true).
movementSpd	integernull	Movement speed (knots).
geometry	stringnull	Geometry as WKT polygon.

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/aviationweather/json-schema/aviationweather-airsigmet-schema.json",
  "title": "AviationWeather Domestic SIGMET",
  "description": "Decoded domestic SIGMET as returned by GET /api/data/airsigmet?format=json.",
  "type": "object",
  "properties": {
    "airSigmetId":   { "type": "integer", "description": "Internal AWC identifier." },
    "icaoId":        { "type": "string", "description": "Issuing center ICAO (typically KKCI for AWC)." },
    "receiptTime":   { "type": "string" },
    "validTimeFrom": { "type": "integer", "description": "UNIX epoch start." },
    "validTimeTo":   { "type": "integer", "description": "UNIX epoch end." },
    "alphaChar":     { "type": ["string","null"], "description": "Alpha designator (A-Z) for the SIGMET series." },
    "hazard":        { "type": "string", "enum": ["CONV","TURB","ICE","IFR","MTN_OBSC","ASH","TC","DS","SS"], "description": "Hazard type." },
    "severity":      { "type": ["string","null"], "description": "Severity (e.g. MOD, SEV)." },
    "rawAirSigmet":  { "type": "string", "description": "Raw SIGMET text." },
    "altitudeHi1":   { "type": ["integer","null"], "description": "Top altitude (feet)." },
    "altitudeLow1":  { "type": ["integer","null"], "description": "Base altitude (feet)." },
    "movementDir":   { "type": ["integer","null"], "description": "Movement direction (degrees true)." },
    "movementSpd":   { "type": ["integer","null"], "description": "Movement speed (knots)." },
    "geometry":      { "type": ["string","null"], "description": "Geometry as WKT polygon." }
  }
}