Space Weather Events
Last checked 16 hours ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 141–160 of 221 records
Coronal mass ejection — 2026-10-20 09:09 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 568 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME first seem to the NW in STEREO A COR2 starting at 2026-10-20T09:09Z. It is also seen to the NNW in SOHO LASCO C2 and GOES CCOR-1 but is covered by a real-time data gap in SOHO LASCO C3. The source of this CME is…
View on DONKI for Coronal mass ejection — 2026-10-20 09:09 UTC (opens in a new tab)Interplanetary shock — 2026-10-20 11:23 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-10-16T12:38:00-CME-001
- Instruments
- SOLAR-1: MAG, ACE: SWEPAM, SOLAR-1: SWiPS, IMAP: MAG, IMAP: SWAPI
Coronal mass ejection — 2026-10-20 14:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 920 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Narrow CME first seen to the NW in STEREO A COR2 starting around 2026-10-20T14:23Z. It is also seen to the NNW in SOHO LASCO C2/C3 and GOES CCOR-1. There are no source candidates on the Earth-facing disk, so the source…
View on DONKI for Coronal mass ejection — 2026-10-20 14:23 UTC (opens in a new tab)Coronal mass ejection — 2026-10-21 08:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 310 km/s
- CME analyses
- 2
- Linked events
- 2026-10-25T12:20:00-IPS-001
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME first seen to the East by STEREO A COR2 beginning at 2026-10-21T08:53Z, as well as by SOHO LASCO C2/C3 and GOES CCOR-1 in later frames. The source of this event is a small eruption seen centered at approx. N40E05…
View on DONKI for Coronal mass ejection — 2026-10-21 08:53 UTC (opens in a new tab)Coronal mass ejection — 2026-10-21 13:38 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 547 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME first seen to the NW by STEREO A COR2 beginning at 2026-10-21T13:38Z, as well as to the North in SOHO LASCO C2/C3 and GOES CCOR-1 in later frames. The source of this CME is likely far sided, and can be seen as field…
View on DONKI for Coronal mass ejection — 2026-10-21 13:38 UTC (opens in a new tab)Coronal mass ejection — 2026-10-21 20:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 841 km/s
- CME analyses
- 2
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed to the NNE in SOHO LASCO C2/C3 and GOES CCOR-1, and to the NW in STEREO A COR2. The source is likely far-sided and may not be observed, with the only potential observation in GOES SUVI 284 starting…
View on DONKI for Coronal mass ejection — 2026-10-21 20:36 UTC (opens in a new tab)Coronal mass ejection — 2026-10-22 20:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 561 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Thin CME observed to the NNE in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2 with a data gap starting at 2026-10-22T17:23Z. The source is likely far-sided, only potentially visible as faint field line…
View on DONKI for Coronal mass ejection — 2026-10-22 20:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-22 22:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 381 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, not observed in STEREO A COR2 due to a real time data gap spanning 2026-10-22T17:53Z to 2026-10-23T01:23Z, where it may be too faint to observe…
View on DONKI for Coronal mass ejection — 2026-10-22 22:12 UTC (opens in a new tab)Solar flare — 2026-10-23 03:43 UTC (C1.3)
- Event type
- Solar flare
- Date
- Flare class
- C1.3
- Linked events
- 2026-10-23T04:18:00-CME-001
- Instruments
- GOES-P: EXIS 1.0-8.0
Coronal mass ejection — 2026-10-23 04:18 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 597 km/s
- CME analyses
- 1
- Linked events
- 2026-10-23T03:43:00-FLR-001
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
This CME is visible to the northwest in SOHO LASCO C2/C3 and GOES CCOR-1, and to the north in STEREO A COR2 imagery. The source is a C1.3 flare and eruption from Active Region 14557 (centered near N10W90) starting…
View on DONKI for Coronal mass ejection — 2026-10-23 04:18 UTC (opens in a new tab)Coronal mass ejection — 2026-10-23 10:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 337 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the northeast in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. Despite data availability during this time, this event is likely far-sided from the perspective of STEREO A and is therefore not observed…
View on DONKI for Coronal mass ejection — 2026-10-23 10:24 UTC (opens in a new tab)Coronal mass ejection — 2026-10-23 16:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 255 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
A super faint CME visible to the NE in SOHO LASCO C2/C3 and GOES CCOR-1 and not seen in STEREO A COR2. No source seen in EUV imagery, so this outflow is possibly far-sided.
View on DONKI for Coronal mass ejection — 2026-10-23 16:36 UTC (opens in a new tab)Coronal mass ejection — 2026-10-24 15:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 652 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Narrow CME first seen to the NE in SOHO LASCO C2 starting around 2026-10-24T15:12Z. It is also seen to the NE in SOHO LASCO C3 and GOES CCOR-1 and to the N in STEREO A COR2. The source is likely related to field line…
View on DONKI for Coronal mass ejection — 2026-10-24 15:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-24 18:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 251 km/s
- CME analyses
- 1
- Instruments
- GOES: CCOR-1
A very minor CME to the E only seen in GOES CCOR-1 and not seen in STEREO A COR2 coronagraph; the CME is covered by the unfilled scheduled data gap in SOHO LASCO coronagraph. No source has been seen in EUV imagery for…
View on DONKI for Coronal mass ejection — 2026-10-24 18:00 UTC (opens in a new tab)Coronal mass ejection — 2026-10-24 18:08 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 566 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed to the SW in STEREO A COR and GOES CCOR-1, not observed in SOHO LASCO C2/C3 due to a data gap from approximately 2026-10-24T16:48Z - 2026-10-24T20:36Z. No source is observed in available EUV imagery…
View on DONKI for Coronal mass ejection — 2026-10-24 18:08 UTC (opens in a new tab)Coronal mass ejection — 2026-10-24 20:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 838 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
A narrow jet-like CME seen to the WSW in all three coronagraphs. No source has been found for this jet-like feature in the EUV imagery.
View on DONKI for Coronal mass ejection — 2026-10-24 20:36 UTC (opens in a new tab)Coronal mass ejection — 2026-10-24 21:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 333 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Relatively narrow CME to the NNW seen in SOHO LASCO C2 and in GOES CCOR-1. This CME is not seen in SOHO LASCO C3 because of poor image quality. It is covered by the data gap in STEREO A COR2 so far. The source is likely…
View on DONKI for Coronal mass ejection — 2026-10-24 21:48 UTC (opens in a new tab)Coronal mass ejection — 2026-10-24 22:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 621 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Faint CME observed to the SW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is far-sided, observed in GOES SUVI 284 as field line movement beyond the W limb around 2026-10-24T22:06Z, and may be directly…
View on DONKI for Coronal mass ejection — 2026-10-24 22:24 UTC (opens in a new tab)Coronal mass ejection — 2026-10-25 03:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 336 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, and faintly to the N in STEREO A COR2. The source is wide field line movement over the E limb starting around 2026-10-25T02:09Z in SDO AIA 171/193/304 and GOES…
View on DONKI for Coronal mass ejection — 2026-10-25 03:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-25 05:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 246 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, starting very slow. It is either not yet seen in STEREO A COR2 due to a data gap beginning at 2026-10-25T10:09Z or too faint to resolve the leading edge. The…
View on DONKI for Coronal mass ejection — 2026-10-25 05:00 UTC (opens in a new tab)
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Coverage of this source
- 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: 13 Nov 2026, 19:00 EST.
- 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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