Space Weather Events
Coronal mass ejection — 2026-10-10 16:15 UTC
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.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Peak (UTC) | — |
| End (UTC) | — |
| Flare class | — |
| Source location / observed at | N08W54 |
| CME speed (most accurate analysis) | 1553 km/s |
| Kp index values (as observed) | — |
| CME analyses | 2 |
| Linked events | 2026-10-10T14:58:00-FLR-001, 2026-10-13T00:21:00-IPS-001 |
| Instruments | GOES: CCOR-1, SOHO: LASCO/C2, SOHO: LASCO/C3 |
Research information from NASA DONKI, not an operational warning. NOAA SWPC is the official US source of space weather forecasts.
CME analyses
| Analysis | Time at 21.5 R☉ (UTC) | Speed (km/s) | Half angle (°) | Lat / lon (°) | Type | Technique | Model runs (WSA-ENLIL) |
|---|---|---|---|---|---|---|---|
| #1 (opens in a new tab) Most accurate (DONKI) | 2026-10-10T20:06Z | 844 | 43 | 33 / 54 | C | SWPC_CAT | Shock arrival not predicted; Earth glancing blow: no run (opens in a new tab) |
| #2 (opens in a new tab) Most accurate (DONKI) | 2026-10-10T17:53Z | 1553 | 45 | 13 / 9 | O | SWPC_CAT | Shock arrival 2026-10-12T00:43Z; Earth glancing blow: no run (opens in a new tab) |
Analyses are measurements and modelled predictions submitted to DONKI; the "most accurate" mark is DONKI's own.
Notifications sent
- 20261010-AL-008 (opens in a new tab) 2026-10-10T19:49Z
Provenance
| Source | NASA DONKI — Space Weather Events |
|---|---|
| Feed | DONKI CME |
| Provider data as of | not stated |
| First observed here | 12 Oct 2026, 20:02 EDT |
| Last observed here | 12 Oct 2026, 22:18 EDT |
| In latest snapshot | Yes |
| Record identifier | 6a06a719-b9c1-5c05-8110-c188de996511 |
Local observation history
What this site observed; not complete provider history.
- — Changed
- — Added