Solar Storms at CME Halo
Reported by SOHO LASCO 178 days ago.
What the source measured
SOHO LASCO reported: Coronal Mass Ejection detected at 2026-03-25T00:45Z. Linear speed: 1226 km/s. Half-angle: 20°. Full halo CME — potential global geomagnetic impact. CME visible to the southwest in GOES CCOR-1 and in limited available SOHO LASCO C3 imagery in real-time during a data downlink period. Not visible in STEREO A COR2 imagery due to a data gap starting a
How we know
One source: SOHO LASCO. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Solar Storms |
| Severity | High |
| Calamity Score (ours) | 22 / 100 |
| Legacy data-support index | 0.49/1 |
| Coordinates | 0.0000, 0.0000 |
| Timestamp | 2026-03-25T00:45:00.000Z |
| Source | https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/45291/-1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: soho_lasco. Occurrence: 2026-03-25T00:45:00.000Z.
First archived: 2026-03-29T04:18:35.324Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| ActivityId | 2026-03-25T00:45:00-CME-001 |
| SpeedKms | 1226 |
| HalfAngleDeg | 20 |
| IsHalo | true |
| EarthDirected | false |
| EventType | cme |
| Note | CME visible to the southwest in GOES CCOR-1 and in limited available SOHO LASCO C3 imagery in real-time during a data downlink period. Not visible in STEREO A COR2 imagery due to a data gap starting at 2026-03-24T13:53Z. The source is a C2.9 flare and associated eruption from AR 14400 (approximately |
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.