Space Weather Events
Last checked 35 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▼, sorted descending; sort Instruments, A to Z | Summary↕, sortable; sort Summary, A to Z |
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| 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 — 2026-09-20 12:23 UTC | Coronal mass ejection | — | 427 km/s | 1 | — | STEREO A: SECCHI/COR2 | Faint CME observed to the W only in STEREO A COR2. No distinct source is observed in available EUV imagery. | |
| Coronal mass ejection — 2026-09-20 22:38 UTC | Coronal mass ejection | — | 318 km/s | 1 | — | 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 around 2026-09-20T18:55Z. | |
| Coronal mass ejection — 2026-09-21 09:09 UTC | Coronal mass ejection | — | 347 km/s | 1 | — | 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 as brightening and field line movement starting around 2026-09-21T09:05Z, very close to the CME start time however. There are two additional field line movements near the NW limb in SDO AIA 171 starting around 2026-09-21T03:03Z and 2026-09-21T05:54Z, however these eruptions may be too early to be associated with this CME. Triangulation of the leading edge suggests the CME is 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 — 2026-09-24 09:23 UTC | Coronal mass ejection | — | 618 km/s | 1 | — | 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. | |
| Coronal mass ejection — 2026-09-25 11:09 UTC | Coronal mass ejection | — | 797 km/s | 3 | — | 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 195 imagery starting at 2026-09-25T10:25Z. Moving field lines are also visible beyond the east limb in SDO AIA 171 in ISWA. | |
| Coronal mass ejection — 2026-09-25 11:23 UTC | Coronal mass ejection | — | 745 km/s | 1 | — | 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 faintly seen to the south in STEREO A EUV 195 imagery starting 2026-09-25T11Z as a faint dimming and faint post-eruptive arcades centered ~S40W80 or W90. Not really seen in GOES SUVI 304 or STEREO A 304 imagery. | |
| 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 — 2026-10-06 06:23 UTC | Coronal mass ejection | — | 573 km/s | 2 | 2026-10-06T05:38:00-FLR-001, 2026-10-10T01:56:00-IPS-001 | 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, observed in SDO AIA 131. Also observed as an EUV wave, field line movement, brightening, filament ejecta, and small post-eruptive arcade in SDO AIA 131/171/193/304. Additionally observed on the NE limb of STEREO A EUVI 195 as field line movement and EUV wave, and EUVI 304 as filament ejecta. | |
| 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 — 2026-10-06 13:08 UTC | Coronal mass ejection | — | 438 km/s | 1 | — | 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 approx. E10N40 beginning at approx. 2026-10-06T12:22Z as seen in SDO AIA 171 and GOES SUVI 284. | |
| 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 — 2026-10-08 16:53 UTC | Coronal mass ejection | — | 504 km/s | 3 | 2026-10-08T15:29:00-FLR-001 | 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 M6.7 class flare from AR 14549 (N12W20) which peaked at 2026-10-08T15:48Z. The flare is best seen in SDO AIA 131. The accompanying EUV wave which spans the entire NW quadrant of the Earth-facing disk is best seen in SDO AIA 193. The eruption is also visible in STEREO A EUV 195/304 imagery. | |
| Coronal mass ejection — 2026-10-08 18:38 UTC | Coronal mass ejection | — | 868 km/s | 1 | — | 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 edge not observed in SOHO LASCO C2/C3 or GOES CCOR-1. Partial overlap with CMEs 2026-10-08T16:24Z and CME 2026-10-08T16:53Z. The source is an on-disk filament eruption in the vicinity of AR 14548, starting around 2026-10-08T17:13Z, with the filament spanning a curved arc from S08E15 to S21E24 to S15E05 before liftoff in SDO AIA 304. Eruption observed as filament ejecta, brightening, and double-ribbon flare in SDO AIA 304, and as field line movement, dimming, and brightening/post-eruptive arcades in SDO AIA 171/193/211. | |
| Coronal mass ejection — 2026-10-10 12:23 UTC | Coronal mass ejection | — | 763 km/s | 1 | — | 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 not seen in C3 or GOES C3. No source has been found in EUV imagery for this event. | |
| Coronal mass ejection — 2026-10-12 05:09 UTC | Coronal mass ejection | — | 741 km/s | 1 | — | 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 131/171/193/304, GOES SUVI 131/171/195/284/304, and STEREO A EUVI 195/304 imagery. Dimming is visible in SDO AIA 193 and GOES SUVI 195 imagery, with post eruptive arcades visible starting around 2026-10-12T05:45Z. | |
| Coronal mass ejection — 2026-10-12 10:09 UTC | Coronal mass ejection | — | 351 km/s | 1 | — | 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. | |
| Coronal mass ejection — 2026-10-12 12:23 UTC | Coronal mass ejection | — | 335 km/s | 1 | — | 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 lifts-off around 2026-10-12T10:15Z. | |
| Interplanetary shock — 2026-09-17 15:10 UTC | Interplanetary shock | — | — | — | 2026-09-14T11:08:00-CME-001 | STEREO A: IMPACT, STEREO A: PLASTIC | — |
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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, 10:00 EDT.
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