Solar activity forecast for the period August 25 - August 26, 2026

Issued: 2026 August 24 17:00 UTC


Analysis from August 23/1700 UTC to August 24/1700 UTC:

Sunspot Regions on the Disk 24/1315 UTC (SDO Continuum): 4
The Largest Event: C3.5 from Region 4513 at 23/2147 UT
X-ray background flux (1.0-8.0 A) August 23: B8.0
Radio Flux 10.7 cm at 23/2300 UTC (Penticton): 130
Solar Wind Speed at 24/1645 UTC: 366.5 km/s, Density: 3.5 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 85, Class M: 45, Class X: 01, Proton: 35
X-ray background flux (1.0-8.0 A): in the range B7.5-C1.0
Radio Flux 10.7 cm: a fluctuation in the range 118-142

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