CCMC CME Scoreboard
Prediction for CME (2026-03-25T00:45:00-CME-001)
CME Observed Time: 2026-03-25T00:45ZDONKI Link: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/45291/-1
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 S14W52) starting at 2026-03-24T23:52Z as seen in GOES SUVI 195/284 with rapidly opening field lines and possible EUV wave.
CME was not detected at Earth.
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2026-03-27T01:00Z (-12.0h, +12.0h)
Confidence that the CME will arrive: 20.0%
Predicted geomagnetic storm max Kp range due to CME: 3.0 - 5.0
Prediction Method: Other (SIDC)
Prediction Method Note:
CME start time: 2026-03-25T00:12:00Z #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 60325 SIDC SOLAR BULLETIN 25 Mar 2026, 1245UT SIDC FORECAST SOLAR FLARES : C-class flares expected, (probability >=50%) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 25 Mar 2026 10CM FLUX: 128 / AP: 008 PREDICTIONS FOR 26 Mar 2026 10CM FLUX: 130 / AP: 021 PREDICTIONS FOR 27 Mar 2026 10CM FLUX: 135 / AP: 014 Solar Active Regions and flaring: Solar flaring activity was low over the past 24 hours, with six C-class flares identified. SIDC Sunspot Group (SG) 832 (NOAA Active Region [AR] 4403) produced the brightest flare, a C7 (SIDC Flare 7253) on 24 March at 17:54 UTC. SIDC SG 830 (NOAA AR 4401, Beta-Gamma magnetic configuration) and SIDC SG 826 (NOAA AR 4400, Beta magnetic configuration) also produced X-ray flares. More C-class flaring activity is expected in the next 24 hours. Coronal mass ejections: A CME seen in LASCO-C2 images as launched on 25 Mar at 00:12 UTC is associated with SIDC SG 826 (NOAA AR 4400) and is expected to deliver a glancing blow on Earth the first half of 27 Mar. Solar wind: During the past 24 hours, the Solar Wind (SW) conditions were affected a glancing blow, on 25 Mar at 05:55 UTC, from a Coronal Mass Ejection (CME). This is the predicted arrival of the the CME launched on 22 Mar at 16:00 UTC and was associated with a filament eruption. As results of the effect, the SW speed increased from 500 to 630 km/s, the interplanetary magnetic field (B) increased to 10 nT, and its North-South component (Bz) varied from -8 nT to 8 nT. Another glancing blow, associated with SIDC CME 642 is expected to arrive in the next 24 hours and have a similar effect. BT #--------------------------------------------------------------------# # Solar Influences Data analysis Center - RWC Belgium # # Royal Observatory of Belgium # Expected arrival time: 2026-03-27T01:00:00Z Arrival time uncertainty: 12 Estimated peak K: 4 Peak K uncertainty: 1 Probability of arrival: 20 CME start time: 2026-03-25T00:12:00ZLead Time: 14.28 hour(s)
Difference: -----
Prediction submitted by Elizabeth Juelfs (LASSOS) on 2026-03-26T10:43Z
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