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06 november 2025, 16:46 мск

The recalculation of the movement model has kept the forecast for the storm's strength in force.

Geomagnetic index Kp
Geomagnetic index Kp

A numerical recalculation of the plasma ejections' motion performed midday only slightly adjusted their trajectory and did not change the geomagnetic forecast for tomorrow.

Mathematical models continue to predict that the impact on Earth's magnetosphere tomorrow will be marginal, with the densest frontal parts of the plasma clouds passing by the planet. In this scenario, the geomagnetic index Kp should remain below the G4 threshold, and the possibility of storms reaching the highest level, G5, is considered unlikely.

This can only be verified after the fact. Currently, the plasma cloud trajectories have moved beyond the field of view of coronagraphs and are not available for further monitoring. The closest spacecraft on the Sun-Earth line are satellites at the L1 Lagrange point, located just 1.5 million kilometers from Earth. The plasma cloud will pass through them just 40 minutes before reaching Earth's orbit. Nevertheless, it is from these devices that the first measurements of the speed and density of the incoming plasma will be received (and this will happen within 10 minutes), after which it will become clear, including which regions of the cloud, frontal or peripheral, have approached the planet.

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Laboratory of Solar Astronomy,SRI RAS

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