Space Weather Events
Coronal mass ejection — 2026-11-03 09:36 UTC
Wide, slow CME observed to the E in SOHO LASCO C2/C3 and GOES CCOR-1, not in STEREO A COR2 due to a data gap beginning at 2026-11-03T18:36Z. This CME is very slow to erupt, speeding up well after its first observation in SOHO LASCO C2. The source is observed in GOES SUVI 171/195/284 starting loosely around 2026-11-03T08:00Z as wide, slow field line movement lasting several hours on/near the E limb, and source may be slightly far-sided.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 347 km/s |
| CME analyses | 2 |
| Linked events | — |
| Instruments | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 |
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) | 2026-11-04T06:14Z | 350 | 36 | 5 / — | S | Plane-of-sky | — |
| #2 (opens in a new tab) Most accurate (DONKI) | 2026-11-04T06:17Z | 347 | 41 | 10 / -95 | S | SWPC_CAT | Shock arrival not predicted; 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.
Provenance
| Source | NASA DONKI — Space Weather Events |
|---|---|
| Feed | DONKI CME |
| Provider data as of | not stated |
| First observed here | 4 Nov 2026, 19:00 EST |
| Last observed here | 13 Nov 2026, 19:00 EST |
| In latest snapshot | Yes |
| Record identifier | 324224b0-db01-5172-80cc-6799993c6869 |
Local observation history
What this site observed; not complete provider history.
- — Added