Space Weather Events
Last checked 21 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 61–80 of 120 records
Coronal mass ejection — 2026-09-25 11:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 745 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
Narrow CME with a pointy front seen in STEREO A COR2 only. This CME partially overlaps in coronagraphs with the far-sided 2026-09-25T11:09Z CME and its shock. The only potential candidate source is a filament liftoff…
View on DONKI for Coronal mass ejection — 2026-09-25 11:23 UTC (opens in a new tab)Interplanetary shock — 2026-09-17 15:10 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-09-14T11:08:00-CME-001
- Instruments
- STEREO A: IMPACT, STEREO A: PLASTIC
Interplanetary shock — 2026-09-21 00:33 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-09-21T12:15:00-HSS-001
- Instruments
- STEREO A: IMPACT, STEREO A: PLASTIC
Interplanetary shock — 2026-09-28 08:32 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-09-29T00:34:00-HSS-001
- Instruments
- STEREO A: IMPACT, STEREO A: PLASTIC
Interplanetary shock — 2026-10-10 01:48 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-10-08T16:24:00-CME-001, 2026-10-10T06:43:00-HSS-001
- Instruments
- STEREO A: IMPACT, STEREO A: PLASTIC
Interplanetary shock — 2026-10-14 03:52 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-10-10T08:36:00-CME-001
- Instruments
- STEREO A: IMPACT, STEREO A: PLASTIC
Coronal mass ejection — 2026-09-14 17:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 461 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME observed to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, likely not observed in STEREO A COR2 either due to faintness or a data gap starting at 2026-09-14T18:53Z before it becomes visible. The source is far-sided…
View on DONKI for Coronal mass ejection — 2026-09-14 17:24 UTC (opens in a new tab)Coronal mass ejection — 2026-09-15 08:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 395 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2
Very faint CME with an unclear front seen to the NE in early images of SOHO LASCO C2 only. It is not seen in SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1, likely because of its faintness. No source for this feature has…
View on DONKI for Coronal mass ejection — 2026-09-15 08:36 UTC (opens in a new tab)Coronal mass ejection — 2026-09-18 03:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 371 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME visible to the NE in SOHO LASCO C2/C3. The CME is also faintly visible to the NE in GOES CCOR-1 following a data gap due to Earthshine from 2026-09-18T03:45Z to 2026-09-18T06:10Z. The CME is not visible in STEREO A…
View on DONKI for Coronal mass ejection — 2026-09-18 03:24 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 16:38 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 729 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, STEREO A: SECCHI/COR2, GOES: CCOR-1
Faint, narrow CME seen to the SW in SOHO LASCO C2 and STEREO A COR2 and very faintly seen in a couple of frames of GOES CCOR-1 coronagraph imagery. The CME is not seen in SOHO LASCO C3. Its source is likely seen in…
View on DONKI for Coronal mass ejection — 2026-09-19 16:38 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 22:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 331 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed to the NW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is a far-sided filament eruption over the NW limb, observed best in GOES 284/304 starting around 2026-09-19T21:22Z. When STEREO A…
View on DONKI for Coronal mass ejection — 2026-09-19 22:12 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 22:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 341 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed brightly to the SW in STEREO A COR2, and very faintly to the SE in SOHO LASCO C2/C3 and GOES CCOR-1. No source is seen in on-disk EUV imagery for this event, and is likely far-sided.
View on DONKI for Coronal mass ejection — 2026-09-19 22:24 UTC (opens in a new tab)Coronal mass ejection — 2026-09-20 03:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 273 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Faint CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, better seen the further into the field-of-view it travels than early C2. No definitive EUV source is observed, and may be far-sided or outflow following…
View on DONKI for Coronal mass ejection — 2026-09-20 03:00 UTC (opens in a new tab)Coronal mass ejection — 2026-09-20 05:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 593 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Faint CME observed to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2. No distinct source is observed for this CME, but could be related to field line movement over the NW limb starting as…
View on DONKI for Coronal mass ejection — 2026-09-20 05:12 UTC (opens in a new tab)Coronal mass ejection — 2026-09-20 12:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 427 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
Faint CME observed to the W only in STEREO A COR2. No distinct source is observed in available EUV imagery.
View on DONKI for Coronal mass ejection — 2026-09-20 12:23 UTC (opens in a new tab)Coronal mass ejection — 2026-09-20 20:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 277 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3
Faint CME observed to the NW in SOHO LASCO C2/C3. The CME is not visible in STEREO A COR2 (may be too faint) or GOES CCOR-1 (likely pylon obscured). No distinct EUV source is observed for this CME.
View on DONKI for Coronal mass ejection — 2026-09-20 20:12 UTC (opens in a new tab)Coronal mass ejection — 2026-09-20 22:38 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 318 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3
Faint CME observed to the NW in STEREO A COR2 and SOHO LASCO C2/C3, not in GOES CCOR-1 as it is likely obscured by the pylon. The only potential source is a slow brightening on the NW disk of STEREO A EUVI 195 starting…
View on DONKI for Coronal mass ejection — 2026-09-20 22:38 UTC (opens in a new tab)Coronal mass ejection — 2026-09-21 09:09 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 347 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Faint CME observed to the NW in STEREO A COR2 and SOHO LASCO C2/C3, largely blocked by the pylon in GOES CCOR-1. The source is unclear, with a potential far-sided source on the STEREO A EUVI 195/304 west limb observed…
View on DONKI for Coronal mass ejection — 2026-09-21 09:09 UTC (opens in a new tab)Coronal mass ejection — 2026-09-24 09:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 618 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
Faint CME observed to the SW only in STEREO A COR2, may be due to faintness or the occulting disk in other coronagraphs. No EUV source is observed for this front.
View on DONKI for Coronal mass ejection — 2026-09-24 09:23 UTC (opens in a new tab)Coronal mass ejection — 2026-09-25 11:09 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 797 km/s
- CME analyses
- 3
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME visible to the NE in SOHO LASCO C2/C3 and GOES CCOR-1. The CME is also visible to the NW in STEREO A COR2. The source is farsided, and is best seen as rapidly opening field lines beyond the west limb in STEREO A EUV…
View on DONKI for Coronal mass ejection — 2026-09-25 11:09 UTC (opens in a new tab)
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- NASA DONKI — Space Weather Events: DONKI events in the look-back window (30 days by default), re-read every hour; older entries remain from earlier refreshes or an optional backfill.
NASA DONKI — Space Weather Events
Data: NASA Community Coordinated Modeling Center (CCMC), DONKI; analyses by the Moon to Mars Space Weather Analysis Office. Last successful refresh: 15 Oct 2026, 09:42 EDT.
- DONKI information is supplied for research and analysis. It is not an operational emergency-warning service: NOAA's Space Weather Prediction Center (swpc.noaa.gov) is the official US source of space weather forecasts and warnings.
- Observations, analyses (a CME can have several, with the one DONKI marks most accurate), model predictions (WSA-ENLIL) and notifications are shown as such, in their original units and classifications. No combined severity score is computed.
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