Solar activity forecast for the period March 23 - March 24, 2025

Issued: 2025 March 22 17:00 UTC


Analysis from March 21/1700 UTC to March 22/1700 UTC:

Sunspot Regions on the Disk 22/1415 UTC (SDO Continuum): 13
The Largest Event: C2.6 from Region 4036 at 22/0613 UT
X-ray background flux (1.0-8.0 A) March 21: C1.1
Radio Flux 10.7 cm at 22/2300 UTC (Penticton): 167
Solar Wind Speed at 22/1645 UTC: 443.4 km/s, Density: 3.4 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 99, Class M: 55, Class X: 15, Proton: 10
X-ray background flux (1.0-8.0 A): in the range C1.0-C1.3
Radio Flux 10.7 cm: a fluctuation in the range 158-181

Vlastislav Feik
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz