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CME Scoreboard: Prediction Detail

Prediction for CME (2025-12-06T21:12:00-CME-001)

CME Observed Time: 2025-12-06T21:12Z
iSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/43306/-1
CME Note: CME first seen to the E in STEREO A COR2 starting at 2025-12-06T20:53Z. The CME is also seen as a full halo in SOHO LASCO C2. The source of this CME is most likely an M8.1 flare from AR 14299 (N23E02) that peaked at 2025-12-06T20:39Z. The eruption signature can be seen across all wavelengths of GOES SUVI imagery and includes dimming, opening field lines, and an EUV wave. The eruption is also visible from the point of view of STEREO A EUV imagery.
CME Shock Arrival Time: 2025-12-09T07:55Z
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2025-12-09T06:00Z
Confidence that the CME will arrive: 70.0%
Predicted geomagnetic storm max Kp range due to CME: 6.0 - 8.0
Prediction Method: Cone + HAF (SEPC, NSSC, CAS)
Prediction Method Note:
predicted CME shock arrival time: 2025-12-09T06:00Z
Confidence that the CME will arrive: 70%
Max Kp Range: 6-8
Lead Time: 24.43 hour(s)
Difference: 1.92 hour(s)
Prediction submitted by Jingjing Wang (NSSC SEPC) on 2025-12-08T07:29Z
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