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Weak Geomagnetic Ripples Detected as Coronal-Hole Stream Nears Earth

Forecast points to a modest solar-wind arrival around October 12 with a possible delay into Monday.

Overview

  • Russia’s Space Research Institute solar lab reports minor geomagnetic disturbances on Saturday.
  • No geomagnetic storm is under way, and the lab expects the fluctuations to subside within hours.
  • Scientists link the activity to a compressed, denser region preceding a high‑speed stream from a coronal hole.
  • The primary flow has not reached Earth yet and could arrive later than earlier projections, potentially Monday morning.
  • Other solar indicators are quiet, making the incoming coronal‑hole stream the main space‑weather focus for the next couple of days.