Space Weather Events
Last checked 54 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 21–40 of 120 records
| Name↕, sortable; sort Name, A to Z | Event type↕, sortable; sort Event type, A to Z | Date↕, sortable; sort Date, earliest first | Flare class↕, sortable; sort Flare class, A to Z | CME speed↕, sortable; sort CME speed (most accurate analysis), lowest first | CME analyses↕, sortable; sort CME analyses, lowest first | Linked events↕, sortable; sort Linked events, A to Z | Instruments▲, sorted ascending; sort Instruments, Z to A | Summary↕, sortable; sort Summary, A to Z |
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| Coronal mass ejection — 2026-10-10 16:15 UTC | Coronal mass ejection | — | 1553 km/s | 2 | 2026-10-10T14:58:00-FLR-001, 2026-10-13T00:21:00-IPS-001 | 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 2026-10-10T15:10Z observed in SDO AIA 131. Also observed starting around 2026-10-10T15:04Z as field line movement and very large EUV wave, some dimming, and brightening/post eruptive arcade in SDO AIA 131/171/193/211/304. | |
| Coronal mass ejection — 2026-10-11 23:15 UTC | Coronal mass ejection | — | 457 km/s | 1 | — | 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 dimming centered near S20E30 starting around 2026-10-11T22:00Z as seen in SDO AIA 193 and GOES SUVI 195 imagery. | |
| Coronal mass ejection — 2026-09-14 17:24 UTC | Coronal mass ejection | — | 461 km/s | 1 | — | 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 over the NW limb, observed in SDO AIA 171/193 starting around 2026-09-17T15:48Z as slow, wide field line movement. More directly observed in STEREO A EUVI 195/304 starting as early as 2026-09-14T14:55Z, as brightening and dimming centered around an estimated N30W115 in the NW disk near former Active Regions 14523 and 14521. | |
| Coronal mass ejection — 2026-09-15 08:36 UTC | Coronal mass ejection | — | 395 km/s | 1 | — | 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 been found in EUV imagery. | |
| Coronal mass ejection — 2026-09-18 03:24 UTC | Coronal mass ejection | — | 371 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | CME visible to the NE in SOHO LASCO C2/C3. The CME is also faintly visible to the NE in GOES CCOR-1 following a data gap due to Earthshine from 2026-09-18T03:45Z to 2026-09-18T06:10Z. The CME is not visible in STEREO A COR2 imagery. The source is beyond the NE limb and is seen as moving field lines starting at 2026-09-18T02:35Z in GOES SUVI 284 and SDO AIA 171/193 imagery. | |
| Coronal mass ejection — 2026-09-19 16:38 UTC | Coronal mass ejection | — | 729 km/s | 1 | — | SOHO: LASCO/C2, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint, narrow CME seen to the SW in SOHO LASCO C2 and STEREO A COR2 and very faintly seen in a couple of frames of GOES CCOR-1 coronagraph imagery. The CME is not seen in SOHO LASCO C3. Its source is likely seen in STEREO A EUV 304 imagery as a large ejecta off the W limb after 2026-09-19T15Z and not seen in any other EUV imagery. The ejecta is not clearly visible, and it's exact location/longitude is unclear, but it seems to be close to the limb (which would be ~159 deg). | |
| Coronal mass ejection — 2026-09-19 18:48 UTC | Coronal mass ejection | — | 321 km/s | 1 | 2026-09-19T17:57:00-FLR-001 | SOHO: LASCO/C2 | Faint, minor CME with an unclear front seen to the E-NE in SOHO LASCO C2. Not seen in other coronagraphs. Its source is the long duration C3.3 class flare from unnumbered AR rotating onto disk (N14E90) peaking at 2026-09-19T18:17Z. There is also an associated opening of field lines on/behind the E limb seen in SDO AIA 193 and a minor prominence/ejecta seen in SDO AIA 304/171 starting after 2026-09-19T18:10Z. The initial front is followed by a series of outflows. | |
| Coronal mass ejection — 2026-09-19 22:12 UTC | Coronal mass ejection | — | 331 km/s | 1 | — | 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 EUVI 304/195 return from a data gap at 2026-09-20T00:15Z and 2026-09-20T00:25 respectively, dimming and post eruptive brightening can be seen in the NW disk, likely left behind by this filament eruption. | |
| Coronal mass ejection — 2026-09-19 22:24 UTC | Coronal mass ejection | — | 341 km/s | 1 | — | 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. | |
| Coronal mass ejection — 2026-09-20 03:00 UTC | Coronal mass ejection | — | 273 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, better seen the further into the field-of-view it travels than early C2. No definitive EUV source is observed, and may be far-sided or outflow following prior CME: 2026-09-19T18:48Z. | |
| Coronal mass ejection — 2026-09-20 05:12 UTC | Coronal mass ejection | — | 593 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME observed to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2. No distinct source is observed for this CME, but could be related to field line movement over the NW limb starting as early as ~2026-09-20T01:48Z in SDO AIA 171. | |
| Coronal mass ejection — 2026-09-20 20:12 UTC | Coronal mass ejection | — | 277 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3 | Faint CME observed to the NW in SOHO LASCO C2/C3. The CME is not visible in STEREO A COR2 (may be too faint) or GOES CCOR-1 (likely pylon obscured). No distinct EUV source is observed for this CME. | |
| Coronal mass ejection — 2026-09-25 15:12 UTC | Coronal mass ejection | — | 524 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint loop front in the wake of 2026-09-25T11:09Z CME, overlapping with outflow from this earlier far-sided CME. The front is faintly seen in SOHO LASCO C2/C3 and GOES CCOR-1 to the NE. There is a super faint, possibly corresponding front even more faintly seen in STEREO A COR2 white light imagery to the NW but it is practically not seen in running difference imagery and seems much wider than the front seen in LASCO and CCOR-1. No source has been found in available EUV imagery for this event, so it is likely far sided. | |
| Coronal mass ejection — 2026-09-25 23:00 UTC | Coronal mass ejection | — | 472 km/s | 1 | — | 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 this event is field line opening seen along the NE limb in GOES SUVI 284 beginning at approx. 2026-09-25T22:00Z. | |
| Coronal mass ejection — 2026-09-26 00:48 UTC | Coronal mass ejection | — | 478 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint CME first seen to the NE by SOHO LASCO C2 beginning at 2026-09-26T00:48Z, as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1. There is no clear source for this event as it is likely far sided. | |
| Coronal mass ejection — 2026-09-26 02:24 UTC | Coronal mass ejection | — | 417 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2 | Faint CME first seen to the NE by SOHO LASCO C2 beginning at 2026-09-26T02:24Z, as well as by SOHO LASCO C3 and STEREO A COR2 in later frames. This CME is obscured by Earthshine in GOES CCOR-1. There is no clear source seen for this event as it is likely far sided. | |
| Coronal mass ejection — 2026-09-26 15:24 UTC | Coronal mass ejection | — | 449 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint minor CME with a pointy front seen to the NE in SOHO LASCO C2/C3 and GOES CCOR-1 but not seen in STEREO A COR2 coronagraph. | |
| Coronal mass ejection — 2026-09-26 19:36 UTC | Coronal mass ejection | — | 427 km/s | 1 | — | 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 304), with source location seen on disk, close to the SW limb in STEREO A EUV 304/195 imagery. In EUV A 195 imagery we see an ejecta, as well as dimming and bright post-eruptive arcades. The erupting filament is also seen in AIA 171 and faintly in AIA 304, and ejecta and opening of field lines are seen off/close behind the SW limb in GOES SUVI 286. The erupting filament stretches very approximately from ~S25W15 (mostly dimming) to ~S20W80 (ejecta and post-eruptive arcades), as seen from STEREO A perspective, so the filament can be estimated as centered very approximately at ~S20W135 from the SDO perspective. | |
| Coronal mass ejection — 2026-09-27 06:36 UTC | Coronal mass ejection | — | 399 km/s | 1 | — | 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 AR 14534 (N10W95) beginning at approx. 2026-09-27T04:30Z in STEREO A EUVI 195. This CME is likely deflected to the West by a large coronal hole in the vicinity of the eruption. | |
| Coronal mass ejection — 2026-09-27 07:00 UTC | Coronal mass ejection | — | 606 km/s | 1 | — | 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 seen located at approx. S30W100-120 beginning at 2026-09-27T06:00Z as seen in STEREO A EUVI 195. |
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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: 15 Oct 2026, 17:51 EDT.
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