A stream of fast solar wind from a large coronal hole will reach Earth within the next 24 hours, triggering a period of unstable geomagnetic conditions lasting two to three days. This was reported by the Solar Astronomy Laboratory of the IKI and ISZF SB RAS. This coronal hole has existed on the Sun for several months and returns to Earth every 27 days - exactly how long it takes the star to complete a full rotation around its axis.
According to the forecast, the strongest impact is expected on Saturday and Sunday, when the planet's magnetosphere will adapt to the new external conditions. Magnetic storms of G1-G2 level are expected - similar phenomena have already been recorded during previous passages of this hole in February and March. The active phase should end on Monday, but the Earth will remain in the fast wind flow for about a week.
Despite the overall decrease in solar flare activity, 2026 remains tense in terms of geomagnetic indicators. In the first hundred days, magnetic storms were observed for 24 days - approximately every fourth day. In this parameter, the year is so far second only to the record-breaking 2003. Increased activity will continue at least until the end of the year, after which it will begin to decline as the solar minimum approaches.
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