Message ID: 20260609-AL-001
Issue Time: 2026-06-09T11:29Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Interplanetary Shock
##
## Message Issue Date: 2026-06-09T11:29:06Z
## Message ID: 20260609-AL-001
##
## Disclaimer: NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.
## Summary:
Significant interplanetary shock detected by ACE at L1 at 2026-06-09T09:53Z.
The shock may be associated with CME with ID 2026-06-06T14:11:00-CME-001 (see notifications 20260606-AL-001, 20260606-AL-004, 20260606-AL-005). Some magnetospheric compression and geomagnetic storm possible.
Activity ID: 2026-06-09T09:53:00-IPS-001.
## Notes:
The cause of this event is under analysis as this arrival signature is still developing.
URL: View Details
Message ID: 20260608-AL-001
Issue Time: 2026-06-08T16:34Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Continued Radiation Belt Enhancement
##
## Message Issue Date: 2026-06-08T16:34:03Z
## Message ID: 20260608-AL-001
##
## Disclaimer: NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.
## Summary:
Significantly elevated energetic electron fluxes in the Earth's outer radiation belt. GOES "greater than 2.0 MeV" integral electron flux remains elevated, recently crossing the threshold of 1000 pfu at 2026-06-08T15:35Z.
The elevated energetic electron flux levels observed since 2026-06-06T16:15Z (see notifications 20260606-AL-002 and 20260606-AL-003) are likely caused by the arrival of the CME with ID 2026-06-03T01:53:00-CME-001 (see notifications 20260603-AL-003, 20260603-AL-004, 20260603-AL-010, 20260603-AL-013, 20260603-AL-014), the CME with ID 2026-06-03T07:23:00-CME-001 (see notifications 20260603-AL-009, 20260603-AL-013, 20260603-AL-014), and/or the CME with ID 2026-06-03T11:48:00-CME-001 (see notifications 20260603-AL-011, 20260603-AL-013, 20260603-AL-014). The arrival of these CMEs was detected at L1 by ACE at 2026-06-05T04:23Z (see notification 20260605-AL-001).
NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.
Activity ID: 2026-06-06T16:15:00-RBE-001.
## Notes:
The arrival of this CME was associated with a moderate geomagnetic storm with ID 2026-06-05T15:00:00-GST-001 (see notifications 20260605-AL-004 and 20260605-AL-005).
URL: View Details