{"source":"space-weather","note":"Free 5-item preview. The full feed is $0.05/call at GET /v1/space-weather/changes.","question":"Which space-weather alerts (geomagnetic storms, solar flares, radio blackouts) were issued since T, and how strong?","sample":[{"source":"space-weather","entityId":"swpc:EF3A-2026-06-15 12:35","type":"space_weather","title":"CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu","summary":"Space Weather Message Code: ALTEF3 Serial Number: 3701 Issue Time: 2026 Jun 15 1235 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3700 Begin Time: 2026 Jun 13 1332 UTC Yesterday Maximum 2MeV Flux: 1581 pfu","significance":6,"detectedAt":"2026-07-14T22:21:46.912Z","effectiveDate":"2026-06-15T12:35:56.833Z","sourceUrl":"https://www.swpc.noaa.gov/products/alerts-watches-and-warnings","detail":{"productId":"EF3A","scale":null,"issued":"2026-06-15 12:35:56.833"}},{"source":"space-weather","entityId":"swpc:EF3A-2026-06-16 11:24","type":"space_weather","title":"CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu","summary":"Space Weather Message Code: ALTEF3 Serial Number: 3702 Issue Time: 2026 Jun 16 1124 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3701 Begin Time: 2026 Jun 13 1332 UTC Yesterday Maximum 2MeV Flux: 1489 pfu","significance":6,"detectedAt":"2026-07-14T22:21:46.912Z","effectiveDate":"2026-06-16T11:24:14.140Z","sourceUrl":"https://www.swpc.noaa.gov/products/alerts-watches-and-warnings","detail":{"productId":"EF3A","scale":null,"issued":"2026-06-16 11:24:14.140"}},{"source":"space-weather","entityId":"swpc:EF3A-2026-06-18 15:07","type":"space_weather","title":"ALERT: Electron 2MeV Integral Flux exceeded 1000pfu","summary":"Space Weather Message Code: ALTEF3 Serial Number: 3703 Issue Time: 2026 Jun 18 1507 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2026 Jun 18 1507 UTC Station: GOES-19 Comment:","significance":6,"detectedAt":"2026-07-14T22:21:46.912Z","effectiveDate":"2026-06-18T15:07:21.583Z","sourceUrl":"https://www.swpc.noaa.gov/products/alerts-watches-and-warnings","detail":{"productId":"EF3A","scale":null,"issued":"2026-06-18 15:07:21.583"}},{"source":"space-weather","entityId":"swpc:TIIA-2026-06-20 04:03","type":"space_weather","title":"ALERT: Type II Radio Emission","summary":"Space Weather Message Code: ALTTP2 Serial Number: 1504 Issue Time: 2026 Jun 20 0403 UTC ALERT: Type II Radio Emission Begin Time: 2026 Jun 20 0300 UTC Estimate Velocity: 300 km/s Comment:","significance":6,"detectedAt":"2026-07-14T22:21:46.912Z","effectiveDate":"2026-06-20T04:03:56.087Z","sourceUrl":"https://www.swpc.noaa.gov/products/alerts-watches-and-warnings","detail":{"productId":"TIIA","scale":null,"issued":"2026-06-20 04:03:56.087"}},{"source":"space-weather","entityId":"swpc:TIIA-2026-06-20 04:03","type":"space_weather","title":"ALERT: Type II Radio Emission","summary":"Space Weather Message Code: ALTTP2 Serial Number: 1504 Issue Time: 2026 Jun 20 0403 UTC ALERT: Type II Radio Emission Begin Time: 2026 Jun 20 0300 UTC Estimate Velocity: 300 km/s Comment:","significance":6,"detectedAt":"2026-07-14T22:21:46.912Z","effectiveDate":"2026-06-20T04:03:56.120Z","sourceUrl":"https://www.swpc.noaa.gov/products/alerts-watches-and-warnings","detail":{"productId":"TIIA","scale":null,"issued":"2026-06-20 04:03:56.120"}}]}