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Issued on 2024 Sep 04 1314 UTC
A solar wind shock was observed today, September 4, at 09:35 UTC. The interplanetary magnetic field increased from approximately 9 nT to 20 nT, while the solar wind speed rose from around 320 km/s to 400 km/s. This shock could be linked to the arrival of the coronal mass ejection (CME) associated with the M5.5 flare that peaked at 13:22 UTC on September 1. The halo CME was primarily directed toward the southeast from Earth's perspective and had a projected speed of 781 km/s. Solar wind conditions are expected to intensify in the coming days as a result of this solar wind shock.