Space Weather Events
Last checked 58 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 1–20 of 115 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↕, sortable; sort Instruments, A to Z | Summary▲, sorted ascending; sort Summary, Z to A |
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| Coronal mass ejection — 2026-09-26 20:00 UTC | Coronal mass ejection | — | 336 km/s | 1 | — | 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. | |
| Coronal mass ejection — 2026-09-25 20:06 UTC | Coronal mass ejection | — | 254 km/s | 1 | — | 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. | |
| Coronal mass ejection — 2026-09-25 20:45 UTC | Coronal mass ejection | — | 460 km/s | 1 | — | 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 imagery, except for possibly some movement of field lines to the NE seen in GOES SUVI 284. | |
| 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 — 2026-09-28 14:36 UTC | Coronal mass ejection | — | 501 km/s | 2 | — | 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 very large filament eruption seen stretching from approx. S10W50 to N45W50 (centered at approx. N27W50) with liftoff beginning at approx. 2026-09-28T13:51Z as seen in SDO AIA, STEREO A EUVI and GOES SUVI 304. Post eruptive arcades, dimming and wide field line opening can be seen in SDO AIA 171/193/211, GOES SUVI 284 and STEREO A EUVI 195. | |
| Coronal mass ejection — 2026-10-09 00:45 UTC | Coronal mass ejection | — | 293 km/s | 1 | — | 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 beyond the E limb as seen in available EUV imagery, as slow moving field lines are visible on the E limb in SDO AIA 193 and GOES SUVI 284 imagery starting as early as 2026-10-08T18:30Z. | |
| Coronal mass ejection — 2026-10-08 16:12 UTC | Coronal mass ejection | — | 449 km/s | 1 | — | 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 seen in SDO AIA 193 starting around 2026-10-08T09:21Z. Some ejecta of material can also be seen beyond the east limb in GOES SUVI 304 as well. | |
| Coronal mass ejection — 2026-10-02 00:53 UTC | Coronal mass ejection | — | 255 km/s | 1 | — | 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. Post-eruption arcades are also visible, and best seen after a data gap in STEREO A EUV 195 imagery. The data gap is from 2026-10-01T14:35Z to 2026-10-02T00:55Z. | |
| Coronal mass ejection — 2026-09-14 11:08 UTC | Coronal mass ejection | — | 897 km/s | 2 | 2026-09-17T01:24:00-IPS-001, 2026-09-17T15:10:00-IPS-001 | 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 centered around AR 14528 (S11W38) best seen in GOES SUVI 284 beginning around 2026-09-14T10:00Z. Field line movement can be seen accompanied by brightening and ejecta. Post-eruptive arcades can also be seen in SDO AIA 193. There seems to be a northwestward deflection from the location of the source. There are two large coronal holes (a northern and a southern one) nearby, possibly responsible for this deflection. | |
| 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 — 2026-10-07 13:53 UTC | Coronal mass ejection | — | 310 km/s | 1 | — | 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 SDO AIA 171. Some dimming and an EUVI wave associated with the eruption can be seen in SDO AIA 193. Some deflection is evident in the measurement of this CME, likely due to it close proximity to a coronal hole to the SE of AR 14549. | |
| 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. | |
| 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 — 2026-09-30 03:12 UTC | Coronal mass ejection | — | 488 km/s | 1 | 2026-09-30T02:30:00-FLR-001, 2026-10-03T01:26:00-IPS-001 | 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 peaking at 2026-09-30T02:46Z. This flare can be seen clearly in SDO AIA 131, along with field line opening, dimming and an EUV wave seen in SDO AIA 171/193/211, GOES SUVI 284 and STEREO A EUVI 195. | |
| 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 — 2026-09-24 02:53 UTC | Coronal mass ejection | — | 500 km/s | 1 | — | 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 observation at 2026-09-24T01:38Z in running difference imagery due to the bright streamer overlap. The source may be an eruption from AR 14536 centered around N03W32, observed as slow dimming, brightening, and field line movement in SDO AIA 171/193 starting around 2026-09-23T21:06Z. In STEREO A COR2, there is a faint leading edge observed already far in the east field-of-view after a data gap ends at 2026-09-24T01:23Z that better corresponds to this eruption time, but is also plausible to be a candidate source for this CME. | |
| Coronal mass ejection — 2026-10-06 09:53 UTC | Coronal mass ejection | — | 424 km/s | 1 | 2026-10-06T07:47:00-FLR-001, 2026-10-10T01:56:00-IPS-001 | 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 SDO AIA 131. Also observed as field line movement, EUV wave, dimming, and brightening in SDO AIA 171/193 starting around 2026-10-06T07:52Z, with brightening and filament ejecta in SDO AIA 304. Also observed well in STEREO A EUVI 195/304 starting around 2026-10-06T08:05Z as field line movement and filament ejecta on the NE limb, with some northward deflection. | |
| 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 — 2026-10-10 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 — 2026-09-19 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. |
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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, 01:57 EDT.
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