Solar Storms at CME Halo
Reported by SOHO LASCO today.
What the source measured
SOHO LASCO reported: Coronal Mass Ejection detected at 2026-09-03T16:36Z. Linear speed: 1321 km/s. Half-angle: 20°. Full halo CME — potential global geomagnetic impact. CME first seen to the E in SOHO LASCO C2, C3, GOES CCOR-1, and STEREO A COR2 imagery. There are two possible sources. The first possible source is a slow, gradual field line loop rising/opening seen i
How we know
One source: SOHO LASCO. Not yet confirmed by a second, independent source.
Our own score for this event is 35 out of 100, at 50 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Solar Storms |
| Severity | High |
| Calamity Score (ours) | 35 / 100 |
| Our confidence | 50% |
| Coordinates | 0.0000, 0.0000 |
| Timestamp | 2026-09-03T16:36:00.000Z |
| Source | https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/48501/-1 |
Score Breakdown
Technical Details
| ActivityId | 2026-09-03T16:36:00-CME-001 |
| SpeedKms | 1321 |
| HalfAngleDeg | 20 |
| IsHalo | true |
| EarthDirected | false |
| EventType | cme |
| Note | CME first seen to the E in SOHO LASCO C2, C3, GOES CCOR-1, and STEREO A COR2 imagery. There are two possible sources. The first possible source is a slow, gradual field line loop rising/opening seen in GOES SUVI 284 beginning at approx. 2026-09-03T14:00Z. The second potential source is a C6.9 flare |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a solar storm event with CalamityScore 35/100, at CME Halo, based on data from soho_lasco. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.