Space Weather Events
Last checked 29 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 1–20 of 115 records
Coronal mass ejection — 2026-09-14 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 — 2026-09-20 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 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 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 — 2026-09-24 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)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)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 — 2026-10-06 06:23 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 573 km/s
- CME analyses
- 2
- Linked events
- 2026-10-06T05:38:00-FLR-001, 2026-10-10T01:56:00-IPS-001
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Full halo CME in SOHO LASCO C2/C3 and GOES CCOR-1, first seen to the NE in STEREO A COR2 (shock fully to the E, wide). The source is AR 14549, associated with an M1.4 flare (N10E12) peaking at 2026-10-06T06:10Z…
View on DONKI for Coronal mass ejection — 2026-10-06 06:23 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 — 2026-10-06 13:08 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 438 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Faint CME first seen to the NNE by STEREO A COR2 beginning at 2026-10-06T13:08Z, as well as by SOHO LASCO C2/C3 and GOES CCOR-1 in later frames. The source of this CME is faint field line opening seen originating from…
View on DONKI for Coronal mass ejection — 2026-10-06 13:08 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 — 2026-10-08 16:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 504 km/s
- CME analyses
- 3
- Linked events
- 2026-10-08T15:29:00-FLR-001, 2026-10-10T14:33:00-IPS-001
- Instruments
- STEREO A: SECCHI/COR2, GOES: CCOR-1
CME visible to the NE in STEREO A COR2 and the NW in GOES CCOR-1. There was a real-time data gap in SOHO LASCO imagery at the start of the CME, but this backfilled with additional imagery. The source for this CME is an…
View on DONKI for Coronal mass ejection — 2026-10-08 16:53 UTC (opens in a new tab)Coronal mass ejection — 2026-10-08 18:38 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 868 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
Faint CME observed to the E only in STEREO A COR2 Science Data, as a real-time gap in STEREO A COR2 beacon data spanning 2026-10-08T18:53Z to 2026-10-09T17:53Z obscured real-time observations of this CME. CME leading…
View on DONKI for Coronal mass ejection — 2026-10-08 18:38 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. Possibly it is the same faint narrow CME that is also seen at the time NE in SOHO LASCO C2 for a few early timestamps and…
View on DONKI for Coronal mass ejection — 2026-10-10 12:23 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
- 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 — 2026-10-12 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 — 2026-10-12 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)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
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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, 12:00 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.