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Prediction for CME (2025-08-05T16:48:00-CME-001)CME Observed Time: 2025-08-05T16:48ZiSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/40388/-1 CME Note: Faint CME seen to the W in SOHO LASCO C2/C3 and GOES CCOR-1, and NE in STEREO A COR2. Source is the M4.4 flare from AR 14168 centered (N04W07) starting around 2025-08-05T15:50Z as seen in SDO AIA 131, 171, 193, 304 imagery. Dimming is observed southwest of the flare site in SDO AIA 171 and 193 imagery, and post-eruptive arcades begin to form in the flare location around 2025-08-05T16:50Z. This CME may have been deflected towards the Northwest, as this Active Region is situation to the Northwest of a large coronal hole. CME Arrival: This CME likely had a glancing blow at L1 around 2025-08-08T23:46Z. This was preceded by a CIR starting around 2025-08-08T06:30Z and associated coronal hole high speed stream. Arrival characterized by a rotation in magnetic field components, including Bz reaching approximately -14.8nT. Characterized by a decrease in temperature and no clear change in density during the CME's passage. Solar wind speeds decreased from approximately 560 km/s to approximately 480 km/s, and remained around 480 km/s until 2025-08-09T15:25Z, where coronal hole high speed stream influence likely continued. CME Shock Arrival Time: 2025-08-08T23:46Z Observed Geomagnetic Storm Parameters due to CME: Max Kp: 6.0 Predicted Arrival Time: 2025-08-08T12:00Z Confidence that the CME will arrive: 72.5% Predicted geomagnetic storm max Kp range due to CME: 5.0 - 7.0 Prediction Method: Median of all Methods Prediction Method Note: This is the auto generated median of all submitted predictions for this CME.Lead Time: -112.87 hour(s) Difference: 11.77 hour(s) Prediction submitted by Auto Generated (CCMC) on 2025-08-13T16:38Z |
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