Space Weather Events
Last checked 29 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 1–20 of 133 records
Coronal mass ejection — 2026-10-05 07:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 701 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Wide CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, and to the NW in STEREO A COR2. The source is a far-sided filament eruption over the NE limb, observed in SDO AIA 171/193/304 as field line movement, EUV…
View on DONKI for Coronal mass ejection — 2026-10-05 07:48 UTC (opens in a new tab)Coronal mass ejection — 2026-10-10 12:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 763 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2
Very minor faint and narrow CME seen to the NE in STEREO A COR2 coronagraph in early timestamps. This is Possibly the same faint narrow CME that is also seen at the time NE in SOHO LASCO C2 for a few early timestamps…
View on DONKI for Coronal mass ejection — 2026-10-10 12:23 UTC (opens in a new tab)Coronal mass ejection — 2026-10-02 17:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 317 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Very faint CME/outflow with a messy, unclear front seen to the NW in SOHO LASCO C2/C3 and GOES CCOR-1 but covered by an extensive data gap in STEREO A COR2. No source was found in EUV imagery for this outflow.
View on DONKI for Coronal mass ejection — 2026-10-02 17:36 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 — 2026-10-06 00:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 325 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the west/southwest in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This event is not seen in STEREO A COR2 imagery likely due to a data gap from 2026-10-05T14:38Z to 2026-10-06T01:23Z. The source is…
View on DONKI for Coronal mass ejection — 2026-10-06 00:00 UTC (opens in a new tab)Coronal mass ejection — 2026-10-12 12:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 335 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
This CME is visible to the west in STEREO A COR2, SOHO LASCO C2/C3, and GOES CCOR-1 imagery. The source is likely related to a filament eruption visible beyond the western limb in STEREO A EUVI 195/304 imagery which…
View on DONKI for Coronal mass ejection — 2026-10-12 12:23 UTC (opens in a new tab)Coronal mass ejection — 2026-10-12 10:09 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 351 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2
This CME is visible to the west in SOHO LASCO C2 and STEREO A COR2 imagery. The source is likely far-sided as there are no source signatures visible on the Earth or STEREO A-facing disk.
View on DONKI for Coronal mass ejection — 2026-10-12 10:09 UTC (opens in a new tab)Coronal mass ejection — 2026-10-11 23:15 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 457 km/s
- CME analyses
- 1
- Instruments
- GOES: CCOR-1, SOHO: LASCO/C2, SOHO: LASCO/C3
This CME is visible to the southwest in GOES CCOR-1 and SOHO LASCO C2/C3 imagery. This event is not seen in STEREO A COR2 in real-time due to a data gap starting at 2026-10-11T17:38Z. The source may be related to…
View on DONKI for Coronal mass ejection — 2026-10-11 23:15 UTC (opens in a new tab)Coronal mass ejection — 2026-10-05 21:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 266 km/s
- CME analyses
- 1
- 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, GOES CCOR-1, and STEREO A COR2 imagery. The source is likely related to a far-sided filament eruption which begins to lift-off around 2026-10-05T19:00Z as seen…
View on DONKI for Coronal mass ejection — 2026-10-05 21:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-12 05:09 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 741 km/s
- CME analyses
- 1
- Linked events
- 2026-10-14T17:28:00-IPS-001
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the east in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is a filament eruption spanning S12E15 to S20E30 which begins to lift off around 2026-10-12T04:45Z as seen in SDO…
View on DONKI for Coronal mass ejection — 2026-10-12 05:09 UTC (opens in a new tab)Coronal mass ejection — 2026-10-02 23:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 654 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the east in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. The source is likely far-sided as there are no source signatures on the Earth-facing disk around the time of this event.
View on DONKI for Coronal mass ejection — 2026-10-02 23:36 UTC (opens in a new tab)Coronal mass ejection — 2026-09-29 07:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 958 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the east in SOHO LASCO C2/C3 and GOES CCOR-1 imagery for a few early frames before becoming too diffuse to observe. This event is not visible in STEREO A COR2 imagery. The source is likely related…
View on DONKI for Coronal mass ejection — 2026-09-29 07:12 UTC (opens in a new tab)Coronal mass ejection — 2026-09-29 04:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 655 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the east in SOHO LASCO C2/C3 and GOES CCOR-1 imagery for a few early frames before becoming too diffuse to observe. This event is not visible in STEREO A COR2 imagery. The source is likely related…
View on DONKI for Coronal mass ejection — 2026-09-29 04:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-11 23:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 618 km/s
- CME analyses
- 1
- Linked events
- 2026-10-14T17:28:00-IPS-001
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
This CME is visible to the east in GOES CCOR-1 and SOHO LASCO C2/C3 imagery. This event is seen in STEREO A COR2, directed towards the east, after it has exceeded the field of view due to a data gap from…
View on DONKI for Coronal mass ejection — 2026-10-11 23:12 UTC (opens in a new tab)Solar flare — 2026-09-19 17:57 UTC (C3.3)
- Event type
- Solar flare
- Date
- Flare class
- C3.3
- Linked events
- 2026-09-19T18:48:00-CME-001
- Instruments
- GOES-P: EXIS 1.0-8.0
The flare was produce by the unnumbered Active Region just behind the limb. This is likely the Active Region that would be numbered AR 14535.
View on DONKI for Solar flare — 2026-09-19 17:57 UTC (C3.3) (opens in a new tab)Solar flare — 2026-10-04 06:21 UTC (B9.3)
- Event type
- Solar flare
- Date
- Flare class
- B9.3
- Linked events
- 2026-10-04T07:36:00-CME-001
- Instruments
- GOES-P: EXIS 1.0-8.0
Second in pair of eruptive flares from AR 14546, directly preceeded by a B3.2 class flare peaking at 2026-10-04T06:19Z. These two flares are in close succession, but visually separable in SDO AIA 131 and in their…
View on DONKI for Solar flare — 2026-10-04 06:21 UTC (B9.3) (opens in a new tab)Solar flare — 2026-10-09 13:55 UTC (M1.3)
- Event type
- Solar flare
- Date
- Flare class
- M1.3
- Linked events
- 2026-10-09T14:36:00-CME-001
- Instruments
- GOES-P: EXIS 1.0-8.0
Region 14547 decayed to a plage on 2026-10-08 and rotated off of the Earth-facing disk early on 2026-10-09. This flare may be occulted due to its location near the west limb.
View on DONKI for Solar flare — 2026-10-09 13:55 UTC (M1.3) (opens in a new tab)Coronal mass ejection — 2026-10-11 09:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 374 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Outflow first seen to the NW in SOHO LASCO C2 starting around 2026-10-11T09:12Z. This feature is much easier to see later in its propagation into SOHO LASCO C3, GOES CCOR-1, and STEREO A COR2. The source is most likely…
View on DONKI for Coronal mass ejection — 2026-10-11 09:12 UTC (opens in a new tab)Coronal mass ejection — 2026-09-27 14:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 283 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Narrow, faint CME first seen to the NE by SOHO LASCO C2 beginning at 2026-09-27T14:48Z, as well as by SOHO LASCO C3 and GOES CCOR-1 in later frames. This CME is not clearly seen in STEREO A COR2 imagery. There is no…
View on DONKI for Coronal mass ejection — 2026-09-27 14:48 UTC (opens in a new tab)Coronal mass ejection — 2026-10-16 20:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 552 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Narrow very minor CME/outflow visible to the SW in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. The CME is not visible in STEREO A COR2 imagery. The start of the CME/outflow is likely much earlier. No source is found for…
View on DONKI for Coronal mass ejection — 2026-10-16 20:24 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: 17 Oct 2026, 20:10 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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