CCMC CME Scoreboard
Prediction for CME (2026-04-17T02:30:00-CME-001)
CME Observed Time: 2026-04-17T02:30ZDONKI Link: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/45715/-1
CME Note: Slow, wide CME to the SE in GOES CCOR-1 and STEREO A COR2, not visible in SOHO LASCO C2/C3 yet due to a downlink gap. The source for this CME is likely a diffuse, very slow dimming, spanning a filament channel approximately ~S26E58 to ~S08E25 (center S17E41), observed starting around 2026-04-16T21:30Z and lasting 12+ hours in SDO AIA 171/193/304 as the dimming, field line movement, and double ribbon flare, but not observing the filament itself actually leaving the disk. A bright inner core follows the initial front likely from this same source, measuring ~210 km/s at S16E52 with a half-width 27 degrees.
CME was not detected at Earth.
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2026-04-20T18:00Z
Predicted geomagnetic storm max Kp range due to CME: 3.0 - 5.0
Prediction Method: Average of all Methods
Prediction Method Note:
This is the auto generated average of all submitted predictions for this CMELead Time: 74.73 hour(s)
Difference: -----
Prediction submitted by Auto Generated (CCMC) on 2026-04-17T15:16Z
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