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

Issued: 2026 October 24 17:00 UTC


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

Sunspot Regions on the Disk 24/1623 UTC (SDO Continuum): 2
The Largest Event: C1.3 from Region 4560 at 23/1907 UT
X-ray background flux (1.0-8.0 A) October 23: B5.2
Radio Flux 10.7 cm at 23/2300 UTC (Penticton): 100
Solar Wind Speed at 24/1645 UTC: 408.6 km/s, Density: 2.2 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 90, Class M: 35, Class X: 05, Proton: 05
X-ray background flux (1.0-8.0 A): in the range B4.2-B4.8
Radio Flux 10.7 cm: a fluctuation in the range 102-108

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