Alerts from NASA's DONKI Early Warning System (Space Weather, Sun)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: CME
Message ID: 20260809-AL-001
Issue Time: 2026-08-09T15:09Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Europa Clipper, Solar Orbiter)
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## Message Issue Date: 2026-08-09T15:09:24Z
## Message ID: 20260809-AL-001
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## 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: 2026-08-09T04:24Z.
Estimated speed: ~781 km/s.
Estimated opening half-angle: 25 deg.
Direction (lon./lat.): -76/24 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-09T04:24:00-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 Europa Clipper (glancing blow) and Solar Orbiter (glancing blow). The flank of the CME will reach Europa Clipper at 2026-08-13T07:00Z and Solar Orbiter at 2026-08-10T02:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-09T04:24:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME update (ensemble) (Missions Near Earth)
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## Message Issue Date: 2026-08-08T23:49:59Z
## Message ID: 20260808-AL-010
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## 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 2026-08-08T03:23:00-CME-001 (see previous notification 20260808-AL-007). 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), 35 (97%) 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 2026-08-11T00:19Z and 2026-08-11T23:25Z (average arrival 2026-08-11T10:32Z). The ensemble-based forecast indicates that there is a 89% chance for the maximum Kp index to be in the 3-5 range (below minor to minor).
Links to the ensemble details of the modeled event:
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-08-08_ncmes1_sims36_M2M-SWAO097/20260808_032300_ncmes1_sims36_M2M-SWAO097_anim_tim-den.gif
## Notes:
The CME event with ID 2026-08-08T03:23:00-CME-001 is also predicted to impact Juice at 2026-08-12T09:47Z, OSIRIS-APEX at 2026-08-12T13:55Z, Parker Solar Probe at 2026-08-10T02:28Z, Europa Clipper at 2026-08-12T12:00Z (glancing blow) and STEREO A at 2026-08-11T20:00Z (glancing blow) (plus minus 7 hours) based on previous heliospheric modeling (see notification 20260808-AL-007).
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/2026-08-08_ncmes1_sims36_M2M-SWAO097/Detailed_results_20260808_032300_ncmes1_sims36_M2M-SWAO097.txt
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Geomagnetic Storm
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## Message Issue Date: 2026-08-08T21:19:03Z
## Message ID: 20260808-AL-009
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## 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 5.67 (moderate) during the synoptic period 2026-08-08T18:00Z to 2026-08-08T21:00Z.
The storm is caused by Interplanetary Shock with ID 2026-08-08T05:54:00-IPS-001 (see notification 20260808-AL-001) and the arrival of CME with ID 2026-08-03T12:23:00-CME-001, CME with ID 2026-08-04T11:23:00-CME-001 (see notification 20260804-AL-001) and/or CME with ID 2026-08-04T13:23:00-CME-001 (see notification 20260804-AL-002).
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: 2026-08-08T18:00:00-GST-001.
## Notes:
This event is associated with Magnetopause Crossing with ID 2026-08-08T18:07:00-MPC-001 (see notification 20260808-AL-004).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Auto-generated Space Weather Notification - Geomagnetic Storm
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## Message Issue Date: 2026-08-08T21:02:19Z
## Message ID: 20260808-AL-008
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## 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 5.67 (moderate) during the synoptic period 2026-08-08T18:00Z to 2026-08-08T21:00Z.
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.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Juice, OSIRIS-APEX, Parker Solar Probe, Europa Clipper, STEREO A, Missions Near Earth)
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## Message Issue Date: 2026-08-08T19:38:11Z
## Message ID: 20260808-AL-007
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## 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: 2026-08-08T03:23Z.
Estimated speed: ~574 km/s.
Estimated opening half-angle: 33 deg.
Direction (lon./lat.): 5/24 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-08T03:23:00-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 Juice, OSIRIS-APEX, Parker Solar Probe, Europa Clipper (glancing blow), and STEREO A (glancing blow). The leading edge of the CME will reach Juice at 2026-08-12T09:47Z, OSIRIS-APEX at 2026-08-12T13:55Z, Parker Solar Probe at 2026-08-10T02:28Z (plus minus 7 hours). The flank of the CME will reach Europa Clipper at 2026-08-12T12:00Z, and STEREO A at 2026-08-11T20:00Z (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 2026-08-11T12:56Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 3-5 (below minor to minor).
Links to the movies of the modeled event (includes CME: 2026-08-08T03:23:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - (Correction) CME (Solar Orbiter)
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## Message Issue Date: 2026-08-08T18:36:21Z
## Message ID: 20260808-AL-006
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## 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: 2026-08-07T23:00Z.
Estimated speed: ~569 km/s.
Estimated opening half-angle: 21 deg.
Direction (lon./lat.): -106/20 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-07T23:00:00-CME-001
Correction to notification with ID 20260808-AL-003. 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 (glancing blow). The flank of the CME will reach Solar Orbiter at 2026-08-08T22:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-07T23:00:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Europa Clipper)
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## Message Issue Date: 2026-08-08T18:18:22Z
## Message ID: 20260808-AL-005
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## 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: 2026-08-08T00:36Z.
Estimated speed: ~774 km/s.
Estimated opening half-angle: 22 deg.
Direction (lon./lat.): -74/22 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-08T00:36:00-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 Europa Clipper (glancing blow). The flank of the CME will reach Europa Clipper at 2026-08-12T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-08T00:36:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Magnetopause Crossing
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## Message Issue Date: 2026-08-08T18:05:24Z
## Message ID: 20260808-AL-004
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## 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:
Strong compression of the magnetosphere detected. Simulations carried out at NASA Community Coordinated Modeling Center indicate that the magnetopause separating magnetospheric and solar wind plasma is close to the geosynchronous orbit starting at 2026-08-08T18:07Z.
The activity is associated with Interplanetary Shock with ID 2026-08-08T05:54:00-IPS-001 (see notification 20260808-AL-001) and with the possible arrivals of CME with ID 2026-08-03T12:23:00-CME-001, CME with ID 2026-08-04T11:23:00-CME-001 (see notification 20260804-AL-001) and/or CME with ID 2026-08-04T13:23:00-CME-001 (see notification 20260804-AL-002).
NASA spacecraft at the geosynchronous orbits may be exposed to solar wind plasma and magnetic field conditions.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Solar Orbiter)
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## Message Issue Date: 2026-08-08T17:50:30Z
## Message ID: 20260808-AL-003
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## 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: 2026-08-07T23:00Z.
Estimated speed: ~569 km/s.
Estimated opening half-angle: 21 deg.
Direction (lon./lat.): -106/20 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-07T23:00:00-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 Solar Orbiter (glancing blow). The flank of the CME will reach Solar Orbiter at 2026-08-09T22:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-07T23:00:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (BepiColombo, Parker Solar Probe, STEREO A, Juice, Mars, Psyche, Missions Near Earth)
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## Message Issue Date: 2026-08-08T16:30:38Z
## Message ID: 20260808-AL-002
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## 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 / STEREO A.
Start time of the event: 2026-08-08T08:15Z.
Estimated speed: ~734 km/s.
Estimated opening half-angle: 41 deg.
Direction (lon./lat.): 49/-13 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-08T08:15:00-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 BepiColombo, Parker Solar Probe, STEREO A, Juice (glancing blow), Mars (glancing blow), and Psyche (glancing blow). The leading edge of the CME will reach BepiColombo at 2026-08-09T05:08Z, Parker Solar Probe at 2026-08-10T01:49Z, STEREO A at 2026-08-10T22:38Z (plus minus 7 hours). The flank of the CME will reach Juice at 2026-08-12T08:00Z, Mars at 2026-08-12T16:00Z, and Psyche at 2026-08-12T18:00Z (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 2026-08-12T00:00Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 2-3 (below minor).
Links to the movies of the modeled event (includes CME: 2026-08-08T08:15:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Interplanetary Shock
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## Message Issue Date: 2026-08-08T12:33:12Z
## Message ID: 20260808-AL-001
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## 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 SOLAR-1 at L1 at 2026-08-08T05:54Z.
The shock may be associated with CME with ID 2026-08-03T12:23:00-CME-001, CME with ID 2026-08-04T11:23:00-CME-001 (see notification 20260804-AL-001) and/or CME with ID 2026-08-04T13:23:00-CME-001 (see notification 20260804-AL-002). Some magnetospheric compression likely and geomagnetic storm possible.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Solar Orbiter, Europa Clipper)
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## Message Issue Date: 2026-08-07T13:52:45Z
## Message ID: 20260807-AL-002
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## 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: 2026-08-07T06:36Z.
Estimated speed: ~785 km/s.
Estimated opening half-angle: 35 deg.
Direction (lon./lat.): -92/5 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-07T06:36:00-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 Lucy (minor impact), Solar Orbiter, and Europa Clipper (glancing blow). The leading edge of the CME will reach Lucy at 2026-08-23T06:00Z and Solar Orbiter at 2026-08-08T02:19Z (plus minus 7 hours). The flank of the CME may reach Europa Clipper at 2026-08-11T06:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-07T06:36:00-CME-001):
(a) 2 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_2.0_ENLIL_CONE_SolO_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_2.0_ENLIL_CONE_EuropaClippr_timeline.gif
(b) 5.5 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_5.5_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_5.5_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_5.5_ENLIL_CONE_Lucy_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260807_114400_5.5_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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (BepiColombo, Mars, Psyche)
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## Message Issue Date: 2026-08-07T00:41:09Z
## Message ID: 20260807-AL-001
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## 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.
Start time of the event: 2026-08-06T17:38Z.
Estimated speed: ~779 km/s.
Estimated opening half-angle: 21 deg.
Direction (lon./lat.): 126/-20 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-06T17:38:00-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 BepiColombo (glancing blow), Mars (glancing blow), and Psyche (glancing blow). The flank of the CME may reach BepiColombo at 2026-08-07T12:00Z, Mars at 2026-08-11T00:00Z, and Psyche at 2026-08-10T16:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-06T17:38:00-CME-001):
