Aviation API
3 Significant Meteorological Information (SIGMET)
SIGMETs provide information concerning the occurrence or unexpected occurrence of weather phenomena which may affect the safety of aircraft operations.
3.1 Region
3.1.1 Description:
This call requests reports issued due to the occurrence or unexpected occurrence of weather incidents which could impact the safety of aircraft operations for the selected region. The reports are returned in a textual format.
3.1.2 API Call:
GET /aviation/sigmet/{region}3.1.3 Parameters:
3.1.3.1 Path Parameter:
| Path Parameter | Example | Description |
|---|---|---|
| region | NZZC | A supported 4-letter international ICAO Flight Information Region (FIR) code. The ICAO code must be uppercase. This path parameter is Mandatory. |
3.1.3.2 Query Parameters:
| Query Parameter | Example | Description |
|---|---|---|
| format | geojson | Specifying this parameter will result in the forecast information contained in the SIGMET being returned in a GeoJSON format. Valid values: json (default) geojson This parameter is Optional. |
3.1.4 Examples:
3.1.4.1 Example 1:
This example would return a list of significant weather incidents which could impact the safety of aircraft operations for the selected region in GeoJSON format.
GET /aviation/sigmet/NZZC?format=geojson3.1.4.1.1 API Response:
{
"version": "1.0",
"issue-time": "2022-07-05T03:45:57Z",
"path": "/aviation/api/aviation/sigmet/NZZC?format=geojson",
"response": [
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
178.5000,
-37.5000
],
[
176.3333,
-39.6667
],
[
177.6667,
-40.0000
],
[
179.1667,
-38.0000
],
[
178.5000,
-37.5000
]
]
]
},
"properties": {
"reportStatus": "NORMAL",
"id": "NZZC SIGMET 5",
"fir": "NZZC",
"sequenceNumber": "5",
"issueTime": "2022-07-05T03:28:00Z",
"validFrom": "2022-07-05T03:37:00Z",
"validTo": "2022-07-05T07:37:00Z",
"phenomenon": "Severe airframe icing",
"obsfcst": "FORECAST",
"intensity": "NO_CHANGE",
"upperLimit": {
"reference": "STD",
"value": 250,
"unit": "FL"
},
"lowerLimit": {
"reference": "STD",
"value": 8000,
"unit": "FT"
}
}
},
{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
171.8333,
-42.5000
],
[
169.1667,
-42.5000
],
[
168.1667,
-43.5000
],
[
170.8333,
-43.6667
],
[
171.8333,
-42.5000
]
]
]
},
"properties": {
"reportStatus": "NORMAL",
"id": "NZZC SIGMET 3",
"fir": "NZZC",
"sequenceNumber": "3",
"issueTime": "2022-07-05T01:35:00Z",
"validFrom": "2022-07-05T01:38:00Z",
"validTo": "2022-07-05T05:38:00Z",
"phenomenon": "Severe turbulence",
"obsfcst": "FORECAST",
"intensity": "NO_CHANGE",
"upperLimit": {
"reference": "STD",
"value": 420,
"unit": "FL"
},
"lowerLimit": {
"reference": "STD",
"value": 300,
"unit": "FL"
},
"movement": {
"direction": {
"value": 180,
"unit": "deg"
},
"speed": {
"value": 10,
"unit": "Kn"
}
}
}
}
]
}
]
}3.1.4.2 Example 2:
This example would return a list of significant weather incidents which could impact the safety of aircraft operations for the selected region.
GET /aviation/sigmet/NZZC3.1.4.2.1 API Response:
{
"version": "1.0",
"issue-time": "2022-07-05T03:49:18Z",
"path": "/aviation/api/aviation/sigmet/NZZC",
"response": [
{
"met:valid-to": "2022-07-05T03:58:00Z",
"met:product-name": "sigmet",
"met:domain": "aviation",
"met:issue-time": "2022-07-05T03:29:00Z",
"av:sigmet-location": "NZZC",
"met:valid-from": "2022-07-05T03:37:00Z",
"met:data": "WSNZ21 NZKL 050329\r\r\nNZZC SIGMET 6 VALID 050337/050358 NZKL-\nNZZC NEW ZEALAND FIR CNL SIGMET 24 042358/050358="
},
{
"met:valid-to": "2022-07-05T07:37:00Z",
"met:product-name": "sigmet",
"met:domain": "aviation",
"met:issue-time": "2022-07-05T03:28:00Z",
"av:sigmet-location": "NZZC",
"met:valid-from": "2022-07-05T03:37:00Z",
"met:data": "WSNZ21 NZKL 050328\r\r\nNZZC SIGMET 5 VALID 050337/050737 NZKL-\nNZZC NEW ZEALAND FIR SEV ICE FCST WI S3730 E17830 - S3800 E17910 -\nS4000 E17740 - S3940 E17620 - S3730 E17830 8000FT/FL250 STNR NC="
},
{
"met:valid-to": "2022-07-05T05:38:00Z",
"met:product-name": "sigmet",
"met:domain": "aviation",
"met:issue-time": "2022-07-05T01:35:00Z",
"av:sigmet-location": "NZZC",
"met:valid-from": "2022-07-05T01:38:00Z",
"met:data": "WSNZ21 NZKL 050135\r\r\nNZZC SIGMET 3 VALID 050138/050538 NZKL-\nNZZC NEW ZEALAND FIR SEV TURB FCST WI S4230 E17150 - S4340 E17050 -\nS4330 E16810 - S4230 E16910 - S4230 E17150 FL300/420 MOV S 10KT NC="
},
{
"met:valid-to": "2022-07-05T03:58:00Z",
"met:product-name": "sigmet",
"met:domain": "aviation",
"met:issue-time": "2022-07-04T23:53:00Z",
"av:sigmet-location": "NZZC",
"met:valid-from": "2022-07-04T23:58:00Z",
"met:data": "WSNZ21 NZKL 042353\r\r\nNZZC SIGMET 24 VALID 042358/050358 NZKL-\nNZZC NEW ZEALAND FIR SEV ICE FCST WI S3750 E17800 - S3750 E17830 -\nS3930 E17700 - S4040 E17640 - S4110 E17550 - S4000 E17610 - S3930\nE17540 - S3750 E17800 8000FT/FL250 STNR NC="
}
]
}3.2 Graphical SIGMET Monitor
SIGMETs provide information concerning the occurrence or unexpected occurrence of weather phenomena which may affect the safety of aircraft operations.
3.2.1 Description:
This call requests a graphical representation of all significant weather incidents which could impact the safety of aircraft operations for the selected region. At this point only graphical SIGMET’s for NZZC and NZZO generated by MetService are available.
3.2.2 API Call:
GET /aviation/chart/sigmet/{region}3.2.3 Path Parameter:
| Path Parameter | Example | Description |
|---|---|---|
| Region | NZZC | A supported 4-letter ICAO Flight Information Region (FIR) code. Valid values: NZZC NZZO The ICAO code must be uppercase. This path parameter is Mandatory. |
3.2.4 Example:
This example would return a graphical summary of weather incidents which could impact the safety of aircraft operations for the selected region.
GET /aviation/chart/sigmet/NZZC3.2.5 API Response:
{
"version":"1.0",
"issue-time":"2018-02-11T04:40:38Z",
"path":"/chart/sigmet/NZZO",
"response":[
{
"met:locator":"https://api.metservice.com/assets/aviation/pict/PGSA00_NZKL_110303__233492.png",
"met:product-name":"gsm",
"met:domain":"aviation",
"met:issue-time":"2018-02-11T03:03:00Z",
"av:sigmet-location":"NZZO"
}
]
}