Issued: 2026 March 31 17:00 UTC


Analysis from March 30/1700 UTC to March 31/1700 UTC:

Sunspot Regions on the Disk 31/1144 UTC (SDO Continuum): 11
The Largest Event: C1.5 from region 4403 at 31/0101 UT
X-ray background flux (1.0-8.0 A) March 30: B7.7
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 151
Solar Wind Speed at 31/1645 UTC: 422.6 km/s, density : 3.3 p/cm^3


Forecast:

Activity level will be: low to moderate - explanation
Event probabilities: Class C: 99%, Class M: 60%, Class X: 30%, Proton: 10%
X-ray background flux (1.0-8.0 A): in the range B6.0-B7.0
Radio Flux 10.7 cm: a fluctuation in the range 139-163

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