The solar wind speed is expected to remain above normal levels due to the influence of positively polarized Coronal Hole Streams, the Shamakhi Astrophysical Observatory, named after Nasreddin Tusi told APA.
It was stated that due to the geoeffective nature of coronal holes on the geomagnetic field, a G1-G2 level, i.e. weak and medium-strength geomagnetic storm, is expected on December 22-24.