{"schemaVersion":"WP-AVIATION-DISRUPTIONS-1.0","freshness":"near-real-time","observedAt":"2026-09-14T03:13:12.000Z","coverage":{"geography":"United States","scope":"Active FAA airport traffic-management events","boundary":"An airport event is not a flight-specific status, cancellation or delay receipt."},"summary":{"activeAirports":6,"majorDisruptions":4,"groundStops":0,"groundDelayPrograms":0,"closures":4,"arrivalDelayEvents":0,"departureDelayEvents":0,"freeFormRestrictions":3},"items":[{"airportCode":"ALO","airportName":"Waterloo Muni","latitude":42.5552,"longitude":-92.3979,"observedAt":"2026-09-02T15:09:54.000Z","groundStop":null,"groundDelayProgram":null,"airportClosure":{"active":true,"reason":"!ALO 09/001 ALO AD AP CLSD EXC HEL 2609080900-2609230300","officialText":"!ALO 09/001 ALO AD AP CLSD EXC HEL 2609080900-2609230300","startsAt":"2026-09-08T09:00:00.000Z","endsAt":"2026-09-23T03:00:00.000Z","issuedAt":"2026-09-02T15:05:00.000Z","observedAt":"2026-09-02T15:09:54.000Z","advisoryUrl":null,"interpretationBoundary":"FAA closure text is preserved as issued. WorldPredicta does not broaden exceptions, schedules or abbreviated scope beyond the official text."},"arrivalDelay":null,"departureDelay":null,"freeFormRestriction":null,"deicing":null,"runwayConfiguration":null,"status":"major-disruption","severity":3,"explanation":{"whatHappened":"The FAA currently reports an airport closure notice at ALO.","whyItMayBeHappening":"The current FAA record does not provide a normalized cause.","whyItMatters":"Airport-level restrictions can affect many flights, but they do not prove that a specific flight is delayed.","whatCouldHappenNext":"The event may be extended, reduced or canceled as traffic volume, runway capacity and weather change.","whatWouldImproveIt":"A withdrawn program, lower published delays or restored airport capacity would indicate improvement.","whatWouldMakeItWorse":"A longer restriction window, a ground stop, a closure or rising average delay would indicate deterioration.","observed":["FAA reports an airport closure notice."],"inferred":["Connecting flights and aircraft rotations may carry some disruption beyond this airport."],"unknown":["Airline-specific cancellations and gate changes are not included in this feed.","The feed does not establish the status or delay reason of every individual flight."]},"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","scope":"United States airport-level traffic-management events"}},{"airportCode":"BGR","airportName":"Bangor International","latitude":44.8086,"longitude":-68.8155,"observedAt":"2026-09-07T14:09:59.000Z","groundStop":null,"groundDelayProgram":null,"airportClosure":{"active":true,"reason":"!BGR 09/041 BGR AD AP CLSD EXC EMERG ACFT DLY 0445-0845 2609140445-2609180845","officialText":"!BGR 09/041 BGR AD AP CLSD EXC EMERG ACFT DLY 0445-0845 2609140445-2609180845","startsAt":"2026-09-14T04:45:00.000Z","endsAt":"2026-09-18T08:45:00.000Z","issuedAt":"2026-09-07T14:06:00.000Z","observedAt":"2026-09-07T14:09:59.000Z","advisoryUrl":null,"interpretationBoundary":"FAA closure text is preserved as issued. WorldPredicta does not broaden exceptions, schedules or abbreviated scope beyond the official text."},"arrivalDelay":null,"departureDelay":null,"freeFormRestriction":null,"deicing":null,"runwayConfiguration":null,"status":"major-disruption","severity":3,"explanation":{"whatHappened":"The FAA currently reports an airport closure notice at BGR.","whyItMayBeHappening":"The current FAA record does not provide a normalized cause.","whyItMatters":"Airport-level restrictions can affect many flights, but they do not prove that a specific flight is delayed.","whatCouldHappenNext":"The event may be extended, reduced or canceled as traffic volume, runway capacity and weather change.","whatWouldImproveIt":"A withdrawn program, lower published delays or restored airport capacity would indicate improvement.","whatWouldMakeItWorse":"A longer restriction window, a ground stop, a closure or rising average delay would indicate deterioration.","observed":["FAA reports an airport closure notice."],"inferred":["Connecting flights and aircraft rotations may carry some disruption beyond this airport."],"unknown":["Airline-specific cancellations and gate changes are not included in this feed.","The feed does not establish the status or delay reason of every individual flight."]},"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","scope":"United States airport-level traffic-management events"}},{"airportCode":"GSP","airportName":"Greenville-Spartanburg International","latitude":34.8958,"longitude":-82.2171,"observedAt":"2026-09-05T00:09:46.000Z","groundStop":null,"groundDelayProgram":null,"airportClosure":{"active":true,"reason":"!GSP 09/009 GSP AD AP CLSD 2609120000-2609141200","officialText":"!GSP 09/009 GSP AD AP CLSD 2609120000-2609141200","startsAt":"2026-09-12T00:00:00.000Z","endsAt":"2026-09-14T12:00:00.000Z","issuedAt":"2026-09-05T00:05:00.000Z","observedAt":"2026-09-05T00:09:46.000Z","advisoryUrl":null,"interpretationBoundary":"FAA closure text is preserved as issued. WorldPredicta does not broaden exceptions, schedules or abbreviated scope beyond the official text."},"arrivalDelay":null,"departureDelay":null,"freeFormRestriction":null,"deicing":null,"runwayConfiguration":null,"status":"major-disruption","severity":3,"explanation":{"whatHappened":"The FAA currently reports an airport closure notice at GSP.","whyItMayBeHappening":"The current FAA record does not provide a normalized cause.","whyItMatters":"Airport-level restrictions can affect many flights, but they do not prove that a specific flight is delayed.","whatCouldHappenNext":"The event may be extended, reduced or canceled as traffic volume, runway capacity and weather change.","whatWouldImproveIt":"A withdrawn program, lower published delays or restored airport capacity would indicate improvement.","whatWouldMakeItWorse":"A longer restriction window, a ground stop, a closure or rising average delay would indicate deterioration.","observed":["FAA reports an airport closure notice."],"inferred":["Connecting flights and aircraft rotations may carry some disruption beyond this airport."],"unknown":["Airline-specific cancellations and gate changes are not included in this feed.","The feed does not establish the status or delay reason of every individual flight."]},"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","scope":"United States airport-level traffic-management events"}},{"airportCode":"SAN","airportName":"San Diego-Lindbergh Field","latitude":32.7338,"longitude":-117.1933,"observedAt":"2026-09-07T14:43:28.000Z","groundStop":null,"groundDelayProgram":null,"airportClosure":{"active":true,"reason":"!SAN 09/030 SAN AD AP CLSD 2609140800-2609141300","officialText":"!SAN 09/030 SAN AD AP CLSD 2609140800-2609141300","startsAt":"2026-09-14T08:00:00.000Z","endsAt":"2026-09-14T13:00:00.000Z","issuedAt":"2026-09-07T14:36:00.000Z","observedAt":"2026-09-07T14:43:28.000Z","advisoryUrl":null,"interpretationBoundary":"FAA closure text is preserved as issued. WorldPredicta does not broaden exceptions, schedules or abbreviated scope beyond the official text."},"arrivalDelay":null,"departureDelay":null,"freeFormRestriction":{"active":true,"classification":"FAA free-form NOTAM restriction","text":"!SAN 03/071 SAN AD AP CLSD TO NON SKED TRANSIENT GA ACFT EXC PPR 619-298-7704 2603181300-2610010800","startsAt":"2026-03-18T13:00:00.000Z","endsAt":"2026-10-01T08:00:00.000Z","issuedAt":"2026-03-18T13:49:00.000Z","observedAt":"2026-04-30T14:30:49.000Z","notamNumber":71,"interpretationBoundary":"The FAA supplies this as free-form NOTAM text. WorldPredicta does not expand abbreviations or reclassify its scope as a general airport closure."},"deicing":null,"runwayConfiguration":null,"status":"major-disruption","severity":3,"explanation":{"whatHappened":"The FAA currently reports an airport closure notice, a free-form FAA/NOTAM restriction at SAN. Its free-form restriction text is preserved without broadening it into a general closure claim.","whyItMayBeHappening":"The current FAA record does not provide a normalized cause.","whyItMatters":"Airport-level restrictions can affect many flights, but they do not prove that a specific flight is delayed.","whatCouldHappenNext":"The event may be extended, reduced or canceled as traffic volume, runway capacity and weather change.","whatWouldImproveIt":"A withdrawn program, lower published delays or restored airport capacity would indicate improvement.","whatWouldMakeItWorse":"A longer restriction window, a ground stop, a closure or rising average delay would indicate deterioration.","observed":["FAA reports an airport closure notice.","FAA reports a free-form FAA/NOTAM restriction.","FAA labels one record as a free-form NOTAM restriction; its plain text is shown without interpretation."],"inferred":["Connecting flights and aircraft rotations may carry some disruption beyond this airport."],"unknown":["Airline-specific cancellations and gate changes are not included in this feed.","The feed does not establish the status or delay reason of every individual flight.","The operational scope of FAA abbreviations in the free-form restriction has not been independently normalized."]},"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","scope":"United States airport-level traffic-management events"}},{"airportCode":"ASE","airportName":"Aspen-Pitkin Co/Sardy Field","latitude":39.2236,"longitude":-106.8626,"observedAt":"2026-09-14T03:13:12.000Z","groundStop":null,"groundDelayProgram":null,"airportClosure":null,"arrivalDelay":null,"departureDelay":null,"freeFormRestriction":{"active":true,"classification":"FAA free-form NOTAM restriction","text":"!ASE 09/025 ASE AD AP CLSD EXC LIFE FLT HEL AND SAR HEL 30MIN PPR 970-379-8406 2609140500-2609141300","startsAt":"2026-09-14T05:00:00.000Z","endsAt":"2026-09-14T13:00:00.000Z","issuedAt":"2026-09-14T03:08:00.000Z","observedAt":"2026-09-14T03:13:12.000Z","notamNumber":25,"interpretationBoundary":"The FAA supplies this as free-form NOTAM text. WorldPredicta does not expand abbreviations or reclassify its scope as a general airport closure."},"deicing":null,"runwayConfiguration":null,"status":"advisory","severity":1,"explanation":{"whatHappened":"The FAA currently reports a free-form FAA/NOTAM restriction at ASE. Its free-form restriction text is preserved without broadening it into a general closure claim.","whyItMayBeHappening":"The current FAA record does not provide a normalized cause.","whyItMatters":"Airport-level restrictions can affect many flights, but they do not prove that a specific flight is delayed.","whatCouldHappenNext":"The event may be extended, reduced or canceled as traffic volume, runway capacity and weather change.","whatWouldImproveIt":"A withdrawn program, lower published delays or restored airport capacity would indicate improvement.","whatWouldMakeItWorse":"A longer restriction window, a ground stop, a closure or rising average delay would indicate deterioration.","observed":["FAA reports a free-form FAA/NOTAM restriction.","FAA labels one record as a free-form NOTAM restriction; its plain text is shown without interpretation."],"inferred":["Connecting flights and aircraft rotations may carry some disruption beyond this airport."],"unknown":["Airline-specific cancellations and gate changes are not included in this feed.","The feed does not establish the status or delay reason of every individual flight.","The operational scope of FAA abbreviations in the free-form restriction has not been independently normalized."]},"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","scope":"United States airport-level traffic-management events"}},{"airportCode":"LAX","airportName":"Los Angeles International","latitude":33.9416,"longitude":-118.4085,"observedAt":"2026-05-27T18:31:49.000Z","groundStop":null,"groundDelayProgram":null,"airportClosure":null,"arrivalDelay":null,"departureDelay":null,"freeFormRestriction":{"active":true,"classification":"FAA free-form NOTAM restriction","text":"!LAX 05/277 LAX AD AP CLSD TO NON SKED TRANSIENT GA ACFT EXC 24HR PPR CTC ATLANTIC AVIATION 310-258-9884 OR SIGNATURE AVIATION 310-410-9605 2605271826-2705281600","startsAt":"2026-05-27T18:26:00.000Z","endsAt":"2027-05-28T16:00:00.000Z","issuedAt":"2026-05-27T18:26:00.000Z","observedAt":"2026-05-27T18:31:49.000Z","notamNumber":277,"interpretationBoundary":"The FAA supplies this as free-form NOTAM text. WorldPredicta does not expand abbreviations or reclassify its scope as a general airport closure."},"deicing":null,"runwayConfiguration":null,"status":"advisory","severity":1,"explanation":{"whatHappened":"The FAA currently reports a free-form FAA/NOTAM restriction at LAX. Its free-form restriction text is preserved without broadening it into a general closure claim.","whyItMayBeHappening":"The current FAA record does not provide a normalized cause.","whyItMatters":"Airport-level restrictions can affect many flights, but they do not prove that a specific flight is delayed.","whatCouldHappenNext":"The event may be extended, reduced or canceled as traffic volume, runway capacity and weather change.","whatWouldImproveIt":"A withdrawn program, lower published delays or restored airport capacity would indicate improvement.","whatWouldMakeItWorse":"A longer restriction window, a ground stop, a closure or rising average delay would indicate deterioration.","observed":["FAA reports a free-form FAA/NOTAM restriction.","FAA labels one record as a free-form NOTAM restriction; its plain text is shown without interpretation."],"inferred":["Connecting flights and aircraft rotations may carry some disruption beyond this airport."],"unknown":["Airline-specific cancellations and gate changes are not included in this feed.","The feed does not establish the status or delay reason of every individual flight.","The operational scope of FAA abbreviations in the free-form restriction has not been independently normalized."]},"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","scope":"United States airport-level traffic-management events"}}],"source":{"name":"FAA National Airspace System Status","url":"https://nasstatus.faa.gov/","dataUrl":"https://nasstatus.faa.gov/api/airport-events"},"verification":{"feedEmptyVerified":false,"sourceReceipt":{"kind":"origin-http-date","observedAt":"2026-09-14T08:31:38.000Z","header":"Date"},"boundary":"Active events carry FAA event timestamps; the source receipt is exposed when the origin supplies one."},"retention":{"mode":"current"}}