Issued: 2026 July 26 17:00 UTC


Analysis from July 25/1700 UTC to July 26/1700 UTC:

Sunspot Regions on the Disk 26/1545 UTC (SDO Continuum): 11
The Largest Event: M3.2 from region 4494 at 26/1528 UT
X-ray background flux (1.0-8.0 A) July 25: B8.0
Radio Flux 10.7 cm at 25/2300 UTC (Penticton): 144
Solar Wind Speed at 26/1645 UTC: 454.5 km/s, density : 0.4 p/cm^3


Forecast:

Activity level will be: low to moderate - explanation
Event probabilities: Class C: 99%, Class M: 55%, Class X: 15%, Proton: 30%
X-ray background flux (1.0-8.0 A): in the range B7.0-B9.0
Radio Flux 10.7 cm: a fluctuation in the range 135-155

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