Aviation Weather Center (NOAA/NWS)
aviationweather.gov
NOAA's Aviation Weather Center data API: METAR observations, TAF terminal forecasts, pilot reports, and AIRMET, SIGMET, international SIGMET and graphical AIRMET advisories for aviation.
GET /v1/data/aviationweather/airmet1Request
Limit to one region code such as AK or BOS.
Issue date in ISO form for an archive request.
curl "https://api.fastcrw.com/v1/data/aviationweather/airmet" \ -H "Authorization: Bearer $FASTCRW_API_KEY"
2Response example
A sample shape. Press Run to see live data from Aviation Weather Center (NOAA/NWS).
[
{
"region": "AK",
"receiptTime": "2026-10-23 11:58:57",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "SFC-WIND"
},
{
"region": "AK",
"receiptTime": "2026-10-23 11:58:57",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "TURB",
"base": 300,
"top": 400
},
{
"region": "AK",
"receiptTime": "2026-10-23 11:58:57",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "TURB",
"top": 20
},
{
"region": "AL",
"receiptTime": "2026-10-23 11:58:57",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "SFC-WIND"
},
{
"region": "AL",
"receiptTime": "2026-10-23 11:58:57",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "IFR",
"top": 10
},
{
"region": "AL",
"receiptTime": "2026-10-23 11:58:57",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "ICE",
"base": 50,
"top": 220
},
{
"region": "AF",
"receiptTime": "2026-10-23 11:58:58",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "TURB",
"base": 300,
"top": 400
},
{
"region": "AF",
"receiptTime": "2026-10-23 11:58:59",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "TURB",
"top": 20
},
{
"region": "AF",
"receiptTime": "2026-10-23 11:58:59",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "LLWS"
},
{
"region": "AG",
"receiptTime": "2026-10-23 11:58:59",
"validTimeFrom": 1792756680,
"validTimeTo": 1792800000,
"airmetType": "AIRMET",
"hazard": "SFC-WIND"
},
"… 68 more items"
]Attribution: Source: NOAA National Weather Service, Aviation Weather Center (aviationweather.gov). Not an official government publication as served here; not endorsed by NOAA or NWS.
Licence: The National Weather Service's disclaimer, which covers this NOAA service, states: "Use of NOAA/NWS Data and Products The information on National Weather Service (NWS) Web pages are in the public domain, unless specifically noted otherwise, and may be used without charge for any lawful purpose so long as you do not: 1) claim it is your own (e.g., by claiming copyright for NWS information -- see below), 2) use it in a manner that implies an endorsement or affiliation with NOAA/NWS, or 3) modify its content and then present it as official government material. You also cannot present information of your own in a way that makes it appear to be official government information. Use of the NWS name (\"National Weather Service\") and/or visual identifier are protected under trademark law and may not be used without permission from the NWS." AviationWeather.gov itself carries no separate licence statement, so this agency-wide public-domain statement is the governing terms; the no-charge-for-any-lawful-purpose wording carries commercial use and redistribution, subject to the three conditions and the trademark carve-out.
Ask with this source
A prompt for your agent that names this source and how to call it through the crw MCP.
AIRMET advisories
Use Aviation Weather Center (NOAA/NWS) (aviationweather) from fastCRW Pergamon, capability "AIRMET advisories" (airmet). You need moderate-hazard en-route advisories such as icing, turbulence or low ceilings. Example options: region=BOS, date=2026-10-22. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "aviationweather" and capability "airmet". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
Graphical AIRMETs
Use Aviation Weather Center (NOAA/NWS) (aviationweather) from fastCRW Pergamon, capability "Graphical AIRMETs" (gairmet). You are drawing or querying forecast hazard areas rather than reading text advisories. Example options: date=2026-10-22. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "aviationweather" and capability "gairmet". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
International SIGMETs
Use Aviation Weather Center (NOAA/NWS) (aviationweather) from fastCRW Pergamon, capability "International SIGMETs" (international-sigmet). You need SIGMETs for airspace outside the United States. Example options: date=2026-10-22. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "aviationweather" and capability "international-sigmet". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
METAR observations
Use Aviation Weather Center (NOAA/NWS) (aviationweather) from fastCRW Pergamon, capability "METAR observations" (metar). You need current or recent observed weather at an airport. Example options: ids=KJFK, hours=3, date=2026-10-22. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "aviationweather" and capability "metar". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>