Space Weather Events
Last checked 25 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 1–20 of 115 records
Coronal mass ejection — 2026-09-26 20:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 336 km/s
- CME analyses
- 1
- Instruments
- GOES: CCOR-1, SOHO: LASCO/C3
A minor faint CME seen to the NE in GOES CCOR-1 and SOHO LASCO C3, and not seen in STEREO A COR2 coronagraph. No source has been found in EUV imagery for this CME, so it is likely far-sided.
View on DONKI for Coronal mass ejection — 2026-09-26 20:00 UTC (opens in a new tab)Coronal mass ejection — 2026-09-25 20:06 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 254 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C3, GOES: CCOR-1
A minor, narrow CME seen to the E in GOES CCOR-1/SOHO LASCO C3. It is not seen in STEREO A COR2. No coronal signatures have been found for this CME in EUV imagery.
View on DONKI for Coronal mass ejection — 2026-09-25 20:06 UTC (opens in a new tab)Coronal mass ejection — 2026-09-25 20:45 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 460 km/s
- CME analyses
- 1
- Instruments
- GOES: CCOR-1, SOHO: LASCO/C3
A narrow CME seen to the NE in GOES CCOR-1/SOHO LASCO C3 with a pointed front. It is not seen in STEREO A COR2 and SOHO LASCO C2 currently because of a data gap. No coronal signatures have been found for this CME in EUV…
View on DONKI for Coronal mass ejection — 2026-09-25 20:45 UTC (opens in a new tab)Coronal mass ejection — 2026-09-26 19:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 427 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Bright lightbulb-shaped CME seen to the SW in SOHO LASCO C2/C3, GOES CCOR-1 and STEREO A COR2. Its source is a large prominence seen lifting from behind the SW limb starting at 2026-09-26T18:28Z (best seen in GOES SUVI…
View on DONKI for Coronal mass ejection — 2026-09-26 19:36 UTC (opens in a new tab)Coronal mass ejection — 2026-09-28 14:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 501 km/s
- CME analyses
- 2
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Bright loop CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-28T14:36Z, as well as by SOHO LASCO C3 and GOES CCOR-1, as well as to the East in STEREO A COR2 in later frames. The source of this event is a…
View on DONKI for Coronal mass ejection — 2026-09-28 14:36 UTC (opens in a new tab)Coronal mass ejection — 2026-10-09 00:45 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 293 km/s
- CME analyses
- 1
- Instruments
- GOES: CCOR-1
CME faintly seen to the east in GOES CCOR-1 imagery. There is a data gap in SOHO LASCO C2/C3 imagery starting at 2026-10-09T00:48Z and a data gap starting in STEREO A COR2 at 2026-10-09T00:53Z. The source is likely…
View on DONKI for Coronal mass ejection — 2026-10-09 00:45 UTC (opens in a new tab)Coronal mass ejection — 2026-10-08 16:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 449 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2
CME faintly seen to the east in SOHO LASCO C2/C3 and GOES CCOR-1. The CME may potentially be visible to the west in STEREO A COR2. The potential source for this CME may be beyond the east limb, as moving field lines are…
View on DONKI for Coronal mass ejection — 2026-10-08 16:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-02 00:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 255 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME faintly visible to the NE in STEREO A COR2 and the NW in SOHO LASCO C2/C3 and GOES CCOR-1. The source is likely a gradual eruption with moving field lines best seen in SDO AIA 193 starting around 2026-10-01T17:43Z…
View on DONKI for Coronal mass ejection — 2026-10-02 00:53 UTC (opens in a new tab)Coronal mass ejection — 2026-09-14 11:08 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 897 km/s
- CME analyses
- 2
- Linked events
- 2026-09-17T01:24:00-IPS-001, 2026-09-17T15:10:00-IPS-001
- Instruments
- STEREO A: SECCHI/COR2, GOES: CCOR-1
CME first seen to the E in STEREO A COR2 starting at 2026-09-14T11:08Z. It is also seen to the W in GOES CCOR-1. This CME is covered by a data gap in SOHO LASCO C2/C3 in real time. The source of this CME is an eruption…
View on DONKI for Coronal mass ejection — 2026-09-14 11:08 UTC (opens in a new tab)Coronal mass ejection — 2026-09-25 23:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 472 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME first seen to the NE by SOHO LASCO C2 beginning at 2026-09-25T23:00Z, as well as by SOHO LASCO C3, and GOES CCOR-1. This CME is either too faint or is obscured by the occulting disk in STEREO A COR2. The source of…
View on DONKI for Coronal mass ejection — 2026-09-25 23:00 UTC (opens in a new tab)Coronal mass ejection — 2026-10-07 13:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 310 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME first seen to the NE in STEREO A COR2 starting at 2026-10-07T13:53Z. So far it is only visible in COR2A. The source of this CME is a C7.9 class flare from AR 14549 (N10W04) peaking at 2026-10-07T13:17Z best seen in…
View on DONKI for Coronal mass ejection — 2026-10-07 13:53 UTC (opens in a new tab)Coronal mass ejection — 2026-09-27 07:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 606 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME first seen to the SW by SOHO LASCO C2 beginning at 2026-09-27T07:00Z as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. The source of this event is minor field line movement and brightening…
View on DONKI for Coronal mass ejection — 2026-09-27 07:00 UTC (opens in a new tab)Coronal mass ejection — 2026-09-27 06:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 399 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-27T06:36Z, as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. The source of this event is a small eruption from the vicinity of…
View on DONKI for Coronal mass ejection — 2026-09-27 06:36 UTC (opens in a new tab)Coronal mass ejection — 2026-09-30 03:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 488 km/s
- CME analyses
- 1
- Linked events
- 2026-09-30T02:30:00-FLR-001, 2026-10-03T01:26:00-IPS-001
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-30T03:12Z, as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1. The source of this event is a C8.6 flare from Active Region 14535 (N11W48) seen…
View on DONKI for Coronal mass ejection — 2026-09-30 03:12 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 — 2026-09-24 02:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 500 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
CME observed to the E only in STEREO A COR2, likely not seen in other coronagraphs due to the occulting disk and/or faint leading edge. The start time of 2026-09-24T02:53Z in white light is later than the first…
View on DONKI for Coronal mass ejection — 2026-09-24 02:53 UTC (opens in a new tab)Coronal mass ejection — 2026-10-06 09:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 424 km/s
- CME analyses
- 1
- Linked events
- 2026-10-06T07:47:00-FLR-001, 2026-10-10T01:56:00-IPS-001
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME observed to the NE in STEREO A COR2, also faintly observed to the N in SOHO LASCO C2/C3 and GOES CCOR-1. The source is AR 14549, associated with an M1.8 class flare (N08E07) peaking at 2026-10-06T08:05Z, observed in…
View on DONKI for Coronal mass ejection — 2026-10-06 09:53 UTC (opens in a new tab)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 — 2026-10-10 16:15 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 1553 km/s
- CME analyses
- 2
- Linked events
- 2026-10-10T14:58:00-FLR-001, 2026-10-13T00:21:00-IPS-001
- Instruments
- GOES: CCOR-1, SOHO: LASCO/C2, SOHO: LASCO/C3
CME observed to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, with a full halo shock. Not yet observed in STEREO A COR2 white light imagery. The source is AR 14549, associated with an M6.4 flare peaking at…
View on DONKI for Coronal mass ejection — 2026-10-10 16:15 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)
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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
Source: Data: NASA Community Coordinated Modeling Center (CCMC), DONKI; analyses by the Moon to Mars Space Weather Analysis Office. Last successful refresh: 14 Oct 2026, 02:57 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.
- Times are UTC as supplied. DONKI revises entries; the look-back window is re-read on every refresh.