Solar activity forecast for the period May 24 - May 25, 2026

Issued: 2026 May 23 17:00 UTC


Analysis from May 22/1700 UTC to May 23/1700 UTC:

Sunspot Regions on the Disk 23/1315 UTC (SDO Continuum): 10
The Largest Event: C3.6 from Region S14E89 at 23/0548 UT
X-ray background flux (1.0-8.0 A) May 22: 125
Radio Flux 10.7 cm at 22/2300 UTC (Penticton): 125
Solar Wind Speed at 23/1643 UTC: 328.2 km/s, Density: 1.9 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 99, Class M: 35, Class X: 05, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B8.5-C1.5
Radio Flux 10.7 cm: a fluctuation in the range 113-137

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