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CME Scoreboard: Prediction Detail

Prediction for CME (2026-06-03T11:48:00-CME-001)

CME Observed Time: 2026-06-03T11:48Z
DONKI Link: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/46601/-1
CME Note: This CME is visible as a partial halo to the north/northwest in SOHO LASCO C2/C3 and GOES CCOR-1 imagery, and to the northeast in STEREO A COR2 imagery. The source is an X1.0 flare and subsequent eruption from Active Region 14455 (N14W16) starting around 2026-06-03T11:20Z as seen in SDO AIA 131/171/193/304, GOES SUVI 131/171/195/284/304, and STEREO A EUVI 195/304 imagery. The associated ejecta displays a southeast deflection as seen in SDO AIA 304 imagery. A faint EUV wave is observed moving northwest of the eruption site, however, in SDO AIA 193 imagery. L1 arrival is likely to be 3 merged CMES 2026-06-03T11:48Z, 2026-06-03T07:23Z, 026-06-03T01:53Z.
CME Shock Arrival Time: 2026-06-05T04:23Z
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2026-06-04T19:00Z
Prediction Method: WSA-ENLIL + Cone (NOAA/SWPC)
Prediction Method Note: 
https://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction

CME #1
CME Event ID: B1975
Start Date/Time: 2026-06-02 22:51Z 
Latitude: -12°
Longitude: -45°
Half Angle: 22°
Radial Velocity: 338 km/s

CME #2
CME Event ID: B1979
Start Date/Time: 2026-06-03 04:29Z 
Latitude: 0°
Longitude: 9°
Half Angle: 45°
Radial Velocity: 1240 km/s

CME #3
CME Event ID: B1980
Start Date/Time: 2026-06-03 10:07Z 
Latitude: 47°
Longitude: 13°
Half Angle: 24°
Radial Velocity: 1198 km/s

CME #4
CME Event ID: B1981
Start Date/Time: 2026-06-03 14:00Z 
Latitude: 15°
Longitude: 12°
Half Angle: 39°
Radial Velocity: 1480 km/s
Lead Time: 37.80 hour(s)
Difference: 9.38 hour(s)
Prediction submitted by Leila Mays (GSFC) on 2026-06-03T14:35Z
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