Issued: 2025 May 29 17:00 UTC


Analysis from May 28/1700 UTC to May 29/1700 UTC:

Sunspot Regions on the Disk 29/1400 UTC (SDO Continuum): 6
The Largest Event: C7.0 from region 4100 at 29/0251 UT
X-ray background flux (1.0-8.0 A) May 28: B8.4
Radio Flux 10.7 cm at 28/2300 UTC (Penticton): 142
Solar Wind Speed at 29/1445 UTC: 707.7 km/s, density : 1.9 p/cm^3


Forecast:

Activity level will be: low to moderate - explanation
Event probabilities: Class C: 99%, Class M: 45%, Class X: 15%, Proton: 05%
X-ray background flux (1.0-8.0 A): in the range B9.5-C1.5
Radio Flux 10.7 cm: a fluctuation in the range 130-154

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