Posted on 05/17/2021 4:33:17 PM PDT by dynachrome
Minor G1-class geomagnetic storms are possible on May 18-19 when a pair of coronal mass ejections (CMEs) is expected to hit Earth's magnetic field. The two CMEs left the sun on consecutive days: One from sunspot AR2822 on May 13th, the next from sunspot AR2823 on May 14th. Individually, the CMEs appear to be weak and insubstantial; however, they could add up to a geomagnetic storm when they arrive in quick succession this Tuesday.
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