Space Weather Events
Coronal mass ejection — 2026-11-01 00:00 UTC
Diffuse CME first seen to the SE by SOHO LASCO C2 beginning at 2026-11-01T00:00Z, 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 filament eruption seen centered at approx. S15E65 beginning at approx. 2026-10-31T23:25Z as seen in SDO AIA 304. Post eruptive arcades and field line movement is also visible in SDO AIA 171/193. This eruption is in close proximity to a coronal hole, potentially resulting in some deflection.
| Event type | Coronal mass ejection |
|---|---|
| Date | |
| Flare class | — |
| CME speed | 894 km/s |
| CME analyses | 1 |
| Linked events | — |
| Instruments | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, 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) Most accurate (DONKI) | 2026-11-01T03:40Z | 894 | 14 | -11 / -42 | C | 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.
Notifications sent
- 20261101-AL-002 (opens in a new tab) 2026-11-01T16:06Z
Provenance
| Source | NASA DONKI — Space Weather Events |
|---|---|
| Feed | DONKI CME |
| Provider data as of | not stated |
| First observed here | 1 Nov 2026, 19:00 EST |
| Last observed here | 13 Nov 2026, 19:00 EST |
| In latest snapshot | Yes |
| Record identifier | 2243b574-45fe-5280-8480-438f24b61869 |
Local observation history
What this site observed; not complete provider history.
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