Solar activity forecast for the period May 02 - May 03, 2025

Issued: 2025 May 01 17:00 UTC


Analysis from April 30/1700 UTC to May 01/1700 UTC:

Sunspot Regions on the Disk 01/0538 UTC (SDO Continuum): 5
The Largest Event: C2.5 from Region 4079 at 01/0719 UT
X-ray background flux (1.0-8.0 A) May 01: B7.0
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 147
Solar Wind Speed at 01/1645 UTC: 431 km/s, Density: 8.2 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 90, Class M: 45, Class X: 15, Proton: 05
X-ray background flux (1.0-8.0 A): in the range B6.0-C1.0
Radio Flux 10.7 cm: a fluctuation in the range 140-165

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