Solar activity has increased, and a strong flare of class X2.52 has been recorded in the 4419 sunspot region. As a result of these processes, radio communication interruptions at levels R2–R3, Earth-directed Coronal Mass Ejections (CME), type II–IV radio emissions, and radio interferences in the 10 cm band have been observed.
Medianews.az reports that this information was released by the Shamakhi Astrophysical Observatory named after N. Tusi.
It was stated that a total of 137 sunspots and coronal holes were recorded in 7 sunspot groups on the surface of the Sun.
The electron flux with energy above 2 MeV was at medium and high levels, while the proton flux above 10 MeV remained at background level. The solar wind speed reached a maximum of 603 km/s. Currently, this indicator is 423 km/s, with a density of 2.26 p/cm³.
Due to the impact of Coronal Hole Streams, a weak (G1) geomagnetic storm occurred on April 20–21.
According to forecasts, from April 26 to May 3, the probability of a class C flare is 99 percent, class M is 55 percent, and class X is 15 percent. The electron flux is expected to remain high, and the proton flux may rise to S1 level. The solar wind speed will remain high.
The probability of aurora observations is 15–35 percent at high latitudes and between 1–30 percent at mid-latitudes. The geomagnetic field is expected to be mostly quiet to active.