The earth comes out of one stream of the solar wind, but the other must arrive on August 11-12.
The solar wind flowing from this coronal hole in the shape of a donut can reach Earth on August 11-12.
The solar wind, buffering the Earth’s magnetic field on these dates, can provide a shimmering green background for Perseid meteors in near Arctic latitudes. Geomagnetic disturbances or storms are possible.
