Geomagnetic activity
Taken by Stuart Green on March 31, 2020 @
Preston, Lancashire, UK
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Details:
The predicted solar wind from a coronal hole arrived on March 30th at about 18:00 UT according to my magnetometer here in the UK. This coincided with periods of a southerly oriented interplanetary magnetic field carried by the wind, opening cracks in our protection, and was preceded by a period of milder unrest 18 hours earlier as shown in the chart.
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