Space Weather Events
Last checked 14 hours ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 161–180 of 216 records
Coronal mass ejection — 2026-10-25 09:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 360 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Faint CME observed to the N in SOHO LASCO C2/C3 and GOES CCOR-1. It is likely not observed in STEREO A COR2, but the NW quadrant of COR2 imagery is overlapped with prior CME activity and may obscure this front. The…
View on DONKI for Coronal mass ejection — 2026-10-25 09:48 UTC (opens in a new tab)Interplanetary shock — 2026-10-25 12:20 UTC
- Event type
- Interplanetary shock
- Date
- Linked events
- 2026-10-21T08:53:00-CME-001
- Instruments
- SOLAR-1: MAG, ACE: SWEPAM, ACE: MAG, SOLAR-1: SWiPS, IMAP: MAG, IMAP: SWAPI
Coronal mass ejection — 2026-10-25 19:24 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 275 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2
CME first seen to the SW by SOHO LASCO C2 beginning at 2026-10-25T19:24Z. The source of this event is a small filament eruption seen in SDO AIA 304 located at approx. S10W60, beginning at approx. 2026-10-25T18:42Z…
View on DONKI for Coronal mass ejection — 2026-10-25 19:24 UTC (opens in a new tab)Coronal mass ejection — 2026-10-26 00:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 402 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Faint CME observed to the NNE in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2 due to a data gap. The source is likely far-sided over the east limb, potentially observed as field line movement in GOES…
View on DONKI for Coronal mass ejection — 2026-10-26 00:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-26 01:26 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 285 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the west in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This CME is not visible in STEREO A COR2 in real time due to a data gap. The source may be related to an opening of field lines visible over…
View on DONKI for Coronal mass ejection — 2026-10-26 01:26 UTC (opens in a new tab)Coronal mass ejection — 2026-10-26 02:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 327 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the west in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. There is a data gap in STEREO A COR2 imagery at the time of this CME. The source may be related to a small eruption from Active Region 14560…
View on DONKI for Coronal mass ejection — 2026-10-26 02:12 UTC (opens in a new tab)Solar flare — 2026-10-26 08:21 UTC (C1.9)
- Event type
- Solar flare
- Date
- Flare class
- C1.9
- Linked events
- 2026-10-26T09:00:00-CME-001
- Instruments
- GOES-P: EXIS 1.0-8.0
Coronal mass ejection — 2026-10-26 09:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 873 km/s
- CME analyses
- 1
- Linked events
- 2026-10-26T08:21:00-FLR-001
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed to the SW in SOHO LASCO C2/C3 and GOES CCOR-1 and to the SE in STEREO A COR2. This CME precedes and is partially overlapped by the larger CME: 2026-10-26T09:48Z, very likely from the same source. The source…
View on DONKI for Coronal mass ejection — 2026-10-26 09:00 UTC (opens in a new tab)Coronal mass ejection — 2026-10-26 09:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 681 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
CME observed to the SW in SOHO LASCO C2/C3 and GOES CCOR-1 and to the SE in STEREO A COR2. This CME follows the more faint CME: 2026-10-26T09:00Z, very likely from the same source. The source is newly developed AR…
View on DONKI for Coronal mass ejection — 2026-10-26 09:48 UTC (opens in a new tab)Solar flare — 2026-10-26 18:17 UTC (C2.8)
- Event type
- Solar flare
- Date
- Flare class
- C2.8
- Linked events
- 2026-10-26T18:48:00-CME-001
- Instruments
- GOES-P: EXIS 1.0-8.0
Coronal mass ejection — 2026-10-26 18:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 616 km/s
- CME analyses
- 1
- Linked events
- 2026-10-26T18:17:00-FLR-001
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
This CME is visible to the southwest in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This event is not visible in STEREO A COR2 imagery despite data availability, likely because it is directed towards the spacecraft and…
View on DONKI for Coronal mass ejection — 2026-10-26 18:48 UTC (opens in a new tab)Coronal mass ejection — 2026-10-26 20:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 479 km/s
- CME analyses
- 2
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
This CME is visible to the northeast in SOHO LASCO C2 and GOES CCOR-1 imagery. This event was also seen in SOHO LASCO C3 after a downlink data gap backfilled and was seen in STEREO A COR2 after a data gap from…
View on DONKI for Coronal mass ejection — 2026-10-26 20:48 UTC (opens in a new tab)Coronal mass ejection — 2026-10-27 06:48 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 260 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1
Narrow CME visible to the NNE in SOHO LASCO C2/C3 and GOES CCOR-1 and the NE in STEREO A COR2. The potential source may be a faint filament eruption best seen starting around 2026-10-27T02:16Z in GOES SUVI 304 imagery…
View on DONKI for Coronal mass ejection — 2026-10-27 06:48 UTC (opens in a new tab)Coronal mass ejection — 2026-10-27 12:53 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 302 km/s
- CME analyses
- 1
- Instruments
- STEREO A: SECCHI/COR2
Faint CME visible to the NE in STEREO A COR2. The CME is not clearly visible in SOHO LASCO C2/C3 or GOES CCOR-1 imagery. The potential source location is not found in available EUV imagery.
View on DONKI for Coronal mass ejection — 2026-10-27 12:53 UTC (opens in a new tab)Coronal mass ejection — 2026-10-28 00:00 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
Faint CME observed to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source may be field line movement on/near the high latitude N limb around 2026-10-27T22:31Z in SDO AIA 171, or far-sided and…
View on DONKI for Coronal mass ejection — 2026-10-28 00:00 UTC (opens in a new tab)Coronal mass ejection — 2026-10-28 11:12 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 329 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 and GOES CCOR-1, also very faintly observed to the SW in STEREO A COR2, becoming more defined as it travels further into each coronagraph's field-of-view. The source is…
View on DONKI for Coronal mass ejection — 2026-10-28 11:12 UTC (opens in a new tab)Coronal mass ejection — 2026-10-29 10:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 287 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 west in SOHO LASCO C2/C3 and GOES CCOR-1 and to the east in STEREO A COR2 imagery. The source is a filament eruption with liftoff starting around 2026-10-29T07:36Z seen in SDO AIA…
View on DONKI for Coronal mass ejection — 2026-10-29 10:36 UTC (opens in a new tab)Coronal mass ejection — 2026-10-30 12:36 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 218 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
Very minor and faint CME seen to the W in SOHO LASCO C2/C3 and in GOES CCOR-1 coronagraphs. This CME is not seen in STEREO A COR2. Its source is a very minor eruption from the former AR 14561 (S10W130) starting…
View on DONKI for Coronal mass ejection — 2026-10-30 12:36 UTC (opens in a new tab)Coronal mass ejection — 2026-10-31 05:00 UTC
- Event type
- Coronal mass ejection
- Date
- CME speed
- 345 km/s
- CME analyses
- 1
- Instruments
- SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1
CME first seen to the West by SOHO LASCO C2 beginning at 2026-10-31T05:00Z, as well as by SOHO LASCO C3 and GOES CCOR-1 in later frames. This CME is not clearly seen in STEREO A COR2, as it may be obscured by the pylon…
View on DONKI for Coronal mass ejection — 2026-10-31 05:00 UTC (opens in a new tab)Geomagnetic storm — 2026-10-31 18:00 UTC
- Event type
- Geomagnetic storm
- Date
- Linked events
- 2026-10-31T03:13:00-HSS-001
About this data
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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: 12 Nov 2026, 19:01 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.
- Times are UTC as supplied. DONKI revises entries; the look-back window is re-read on every refresh.