Message ID: 20260606-AL-005
Issue Time: 2026-06-06T20:44Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME update (ensemble) (Missions Near Earth)
##
## Message Issue Date: 2026-06-06T20:44:57Z
## Message ID: 20260606-AL-005
##
## 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:
Ensemble modeling update on CME with ID 2026-06-06T14:11:00-CME-001 (see previous notifications 20260606-AL-001, 20260606-AL-004). Based on heliospheric ensemble modeling carried out at the Moon to Mars Space Weather Analysis Office, it is estimated that the CME may impact NASA missions near Earth. Out of 36 ensemble members (see notes section), 36 (100%) indicate impact at NASA missions near Earth. Ensemble simulations indicate that the leading edge of the CME will reach NASA missions near Earth between about 2026-06-08T01:01Z and 2026-06-08T13:57Z (average arrival 2026-06-08T06:50Z). The ensemble-based forecast indicates that there is a 63% chance for the maximum Kp index to be in the 6-8 range (moderate to severe).
Links to the ensemble details of the modeled event:
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-06-06_ncmes1_sims36_M2M-SWAO085/20260606_141100_ncmes1_sims36_M2M-SWAO085_anim_tim-den.gif
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-06-06_ncmes1_sims36_M2M-SWAO085/20260606_141100_ncmes1_sims36_M2M-SWAO085_arrival_Earth.gif
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-06-06_ncmes1_sims36_M2M-SWAO085/20260606_141100_ncmes1_sims36_M2M-SWAO085_Earth_stack.gif
## Notes:
The CME event with ID 2026-06-06T14:11:00-CME-001 is also predicted to impact Lucy at 2026-06-16T22:14Z, BepiColombo at 2026-06-07T03:06Z, Europa Clipper at 2026-06-09T12:45Z, and OSIRIS-APEX at 2026-06-08T20:06Z, Juice at 2026-06-10T05:00Z (glancing blow), and STEREO A at 2026-06-09T02:00Z (glancing blow) (plus minus 7 hours) based on previous heliospheric modeling (see notifications 20260606-AL-001, 20260606-AL-004).
This CME event (2026-06-06T14:11:00-CME-001) is associated with an M1.8 flare from Active Region 14461 (S22E24) with ID 2026-06-06T13:40:00-FLR-001 which peaked at 2026-06-06T14:01Z.
Ensemble CME modeling at M2M is performed by building sets of initial CME parameters and carrying out separate simulations for each set. This approach allows a mapping of initial CME parameter uncertainties into a statistical characterization of CME arrival times and impact at locations of interest.
Description of links: For each location, the first link shows the WSA-ENLIL+Cone model animation for the median CME input parameters, the second link shows the probabilistic distribution of predicted arrival times histogram, and the third link shows a stack plot of the WSA-ENLIL+Cone modeled magnetic field, velocity, density, and temperature for all ensemble members. For missions near Earth, a histogram of the probabilistic Kp forecast is also provided.
For the full details of the modeled event, please go here:
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-06-06_ncmes1_sims36_M2M-SWAO085/Detailed_results_20260606_141100_ncmes1_sims36_M2M-SWAO085.txt
###
URL: View Details
GIFs:
Message ID: 20260606-AL-004
Issue Time: 2026-06-06T16:56Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, BepiColombo, Europa Clipper, OSIRIS-APEX, Juice, STEREO A, Missions Near Earth)
##
## Message Issue Date: 2026-06-06T16:56:56Z
## Message ID: 20260606-AL-004
##
## 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:
O-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-06-06T14:11Z.
Estimated speed: ~1396 km/s.
Estimated opening half-angle: 49 deg.
Direction (lon./lat.): -27/-7 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-06T14:11:00-CME-001
Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that this CME may affect Lucy, BepiColombo, Europa Clipper, OSIRIS-APEX, Juice (glancing blow), and STEREO A (glancing blow). The leading edge of the CME may reach Lucy at 2026-06-16T22:14Z, BepiColombo at 2026-06-07T03:06Z, Europa Clipper at 2026-06-09T12:45Z, and OSIRIS-APEX at 2026-06-08T20:06Z. The flank of the CME may reach Juice at 2026-06-10T05:00Z and STEREO A at 2026-06-09T02:00Z (plus minus 7 hours).
The simulation also indicates that the CME may impact NASA missions near Earth. Simulations indicate that the leading edge of the CME will reach NASA missions near Earth at about 2026-06-08T06:01Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 6-8 (moderate to severe).
Links to the movies of the modeled event (includes CME: 2026-06-06T14:11:00-CME-001):
(a) 2 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_anim.tim-den-Stereo_A.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_anim.tim-vel-Stereo_A.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_ENLIL_CONE_STA_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_ENLIL_CONE_Bepi_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_ENLIL_CONE_Juice_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_ENLIL_CONE_Osiris_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_2.0_ENLIL_CONE_EuropaClippr_timeline.gif
(b) 5.5 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_5.5_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_5.5_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_5.5_ENLIL_CONE_Lucy_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260606_163300_5.5_ENLIL_CONE_EuropaClippr_timeline.gif
## Notes:
This CME event (2026-06-06T14:11:00-CME-001) is associated with an M1.8 flare from Active Region 14461 (S22E24) with ID 2026-06-06T13:40:00-FLR-001 which peaked at 2026-06-06T14:01Z.
SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s
URL: View Details
GIFs:
Message ID: 20260606-AL-003
Issue Time: 2026-06-06T16:34Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Radiation Belt Enhancement
##
## Message Issue Date: 2026-06-06T16:34:31Z
## Message ID: 20260606-AL-003
##
## 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 is above 1000 pfu starting at 2026-06-06T16:15Z.
The elevated energetic electron flux levels 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
Message ID: 20260606-AL-002
Issue Time: 2026-06-06T16:23Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Auto-generated Space Weather Notification - Radiation Belt Enhancement
##
## Message Issue Date: 2026-06-06T16:23:24Z
## Message ID: 20260606-AL-002
##
## 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 is above 1000 pfu starting at 2026-06-06T16:15Z.
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:
URL: View Details
Message ID: 20260606-AL-001
Issue Time: 2026-06-06T15:50Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Europa Clipper, OSIRIS-APEX, Missions Near Earth)
##
## Message Issue Date: 2026-06-06T15:50:18Z
## Message ID: 20260606-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:
O-type CME detected by GOES / SOHO.
Start time of the event: 2026-06-06T14:11Z.
Estimated speed: ~1623 km/s.
Estimated opening half-angle: 44 deg.
Direction (lon./lat.): -24/-3 in Heliocentric Earth Equatorial coordinates.
NASA spacecraft near OSIRIS-APEX and Europa Clipper, as well as missions near Earth may be affected. Updates on this event will be provided when available.
Activity ID: 2026-06-06T14:11:00-CME-001
## Notes:
This CME event (2026-06-06T14:11:00-CME-001) is associated with M1.8 from Active Region 14461 (S22E24) flare with ID 2026-06-06T13:40:00-FLR-001 which peaked at 2026-06-06T14:01Z.
SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s
URL: View Details
Message ID: 20260605-AL-006
Issue Time: 2026-06-05T18:23Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Europa Clipper, Juice, OSIRIS-APEX, Missions Near Earth)
##
## Message Issue Date: 2026-06-05T18:23:53Z
## Message ID: 20260605-AL-006
##
## 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:
C-type CME detected by GOES / SOHO.
Start time of the event: 2026-06-04T23:00Z.
Estimated speed: ~730 km/s.
Estimated opening half-angle: 10 deg.
Direction (lon./lat.): 17/-1 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-04T23:00:00-CME-001
Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that this CME may affect Europa Clipper (glancing blow), Juice (glancing blow), and OSIRIS-APEX (glancing blow). The flank of the CME will reach Europa Clipper at 2026-06-09T21:00Z, Juice at 2026-06-10T03:00Z, and OSIRIS-APEX at 2026-06-08T12:00Z (plus minus 7 hours).
The simulation also indicates that the CME may have a glancing blow at NASA missions near Earth. Simulations indicate that the flank of the CME will reach NASA missions near Earth at about 2026-06-07T17:00Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 2-4 (below minor).
Links to the movies of the modeled event (includes CME: 2026-06-04T23:00:00-CME-001):
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_021000_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_021000_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_021000_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_021000_2.0_ENLIL_CONE_Juice_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_021000_2.0_ENLIL_CONE_Osiris_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_021000_2.0_ENLIL_CONE_EuropaClippr_timeline.gif
## Notes:
SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s
URL: View Details
GIFs:
Message ID: 20260605-AL-005
Issue Time: 2026-06-05T18:09Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Geomagnetic Storm
##
## Message Issue Date: 2026-06-05T18:09:07Z
## Message ID: 20260605-AL-005
##
## 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:
Ongoing space weather storm in the Earth's magnetosphere. Geomagnetic Kp index has reached level 6.33 (moderate) during the synoptic period 2026-06-05T15:00Z to 2026-06-05T18:00Z.
The storm is caused by the Interplanetary Shock with ID 2026-06-05T04:23:00-IPS-001 (see notification 20260605-AL-001) and the arrival of 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), CME with ID 2026-06-03T07:23:00-CME-001 (see notifications 20260603-AL-009, 20260603-AL-013, 20260603-AL-014) and/or CME with ID 2026-06-03T11:48:00-CME-001 (see notification 20260603-AL-011, 20260603-AL-013, 20260603-AL-014).
NASA spacecraft at GEO, MEO, polar and other orbits passing through or in the vicinity of the Earth's ring current and auroral regions can be impacted.
Activity ID: 2026-06-05T15:00:00-GST-001.
## Notes:
URL: View Details
Message ID: 20260605-AL-004
Issue Time: 2026-06-05T18:02Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Auto-generated Space Weather Notification - Geomagnetic Storm
##
## Message Issue Date: 2026-06-05T18:02:51Z
## Message ID: 20260605-AL-004
##
## 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:
Ongoing space weather storm in the Earth's magnetosphere. Geomagnetic Kp index has reached level 6.33 (moderate) during the synoptic period 2026-06-05T15:00Z to 2026-06-05T18:00Z.
NASA spacecraft at GEO, MEO, polar and other orbits passing through or in the vicinity of the Earth's ring current and auroral regions can be impacted.
Activity ID: 2026-06-05T15:00:00-GST-001.
## Notes:
URL: View Details
Message ID: 20260605-AL-003
Issue Time: 2026-06-05T14:18Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME update (Juno, Solar Orbiter)
##
## Message Issue Date: 2026-06-05T14:18:06Z
## Message ID: 20260605-AL-003
##
## 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:
Update on CME with ID 2026-06-05T09:09:00-CME-001 (see previous notification 20260605-AL-002). Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that the CME may impact Juno. The leading edge of the CME may reach Juno at 2026-06-18T09:00Z (plus minus 7 hours).
Previous simulations also estimate that the CME may affect Solar Orbiter. The leading edge of the CME may reach Solar Orbiter at 2026-06-07T07:44Z (plus minus 7 hours).
CME parameters are (C-type):
Start time of the event: 2026-06-05T09:09Z.
Estimated speed: ~999 km/s.
Estimated opening half-angle: 46 deg.
Direction (lon./lat.): -161/-23 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-05T09:09:00-CME-001
Links to the movies of the modeled event (includes CME: 2026-06-05T09:09:00-CME-001):
(a) 2 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_ENLIL_CONE_SolO_timeline.gif
(b) 5.5 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_5.5_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_5.5_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_5.5_ENLIL_CONE_Juno_timeline.gif
## Notes:
SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s
URL: View Details
GIFs:
Message ID: 20260605-AL-002
Issue Time: 2026-06-05T13:31Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Solar Orbiter)
##
## Message Issue Date: 2026-06-05T13:31:33Z
## Message ID: 20260605-AL-002
##
## 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:
C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-06-05T09:09Z.
Estimated speed: ~999 km/s.
Estimated opening half-angle: 46 deg.
Direction (lon./lat.): -161/-23 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-05T09:09:00-CME-001
Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that the CME may impact Solar Orbiter. The leading edge of the CME will reach Solar Orbiter at 2026-06-07T07:44Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-06-05T09:09:00-CME-001):
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260605_124200_2.0_ENLIL_CONE_SolO_timeline.gif
## Notes:
SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s
URL: View Details
GIFs:
Message ID: 20260605-AL-001
Issue Time: 2026-06-05T11:36Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Interplanetary Shock
##
## Message Issue Date: 2026-06-05T11:36:39Z
## Message ID: 20260605-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 2026-06-05T04:23Z.
The shock is likely associated with the combined arrival of 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), CME with ID 2026-06-03T07:23:00-CME-001 (see notifications 20260603-AL-009, 20260603-AL-013, 20260603-AL-014) and CME with ID 2026-06-03T11:48:00-CME-001 (see notifications 20260603-AL-011, 20260603-AL-013, 20260603-AL-014). Some magnetospheric compression likely and elevated geomagnetic storming conditions possible.
Activity ID: 2026-06-05T04:23:00-IPS-001.
## Notes:
This arrival signature is still developing.
URL: View Details
Message ID: 20260604-AL-001
Issue Time: 2026-06-04T01:35Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (STEREO A)
##
## Message Issue Date: 2026-06-04T01:35:27Z
## Message ID: 20260604-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:
C-type CME detected by GOES / SOHO.
Start time of the event: 2026-06-03T23:00Z.
Estimated speed: ~809 km/s.
Estimated opening half-angle: 10 deg.
Direction (lon./lat.): 73/-14 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-03T23:00:00-CME-001
Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that the CME may impact STEREO A (minor impact). The leading edge of the CME will reach STEREO A at 2026-06-07T08:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-06-03T23:00:00-CME-001):
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260604_032100_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260604_032100_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260604_032100_2.0_anim.tim-den-Stereo_A.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260604_032100_2.0_anim.tim-vel-Stereo_A.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260604_032100_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260604_032100_2.0_ENLIL_CONE_STA_timeline.gif
## Notes:
SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s
URL: View Details
GIFs: