SURPRISE GEOMAGNETIC STORM: Last night Aug 25th, a crack opened in Earth’s magnetic field. Solar wind poured in to fuel a strong G3-class geomagnetic storm. Forecasters did not see this coming. The stage was set for the storm when a minor CME arrived with little fanfare about 24 hours ago. First contact with the CME barely registered in solar wind data, and Earth’s magnetic field was unperturbed. The action began only after Earth entered the CME’s wake, where strong south-pointing magnetic fields opened a crack in our planet’s magnetosphere. A surprise geomagnetic storm ensured.
GEOMAGNETIC ACTIVITY CONTINUES: G1 to G2-class geomagnetic storms are underway on Aug. 27th as our planet passes through a stream of high-speed solar wind. The gaseous material is flowing from a northern hole in the sun’s atmosphere. Earth’s magnetic field was already reverberating from a strong geomagnetic storm…
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