Solar activity forecast for the period August 10 - August 11, 2026

Issued: 2026 August 09 17:00 UTC


Analysis from August 08/1700 UTC to August 09/1700 UTC:

Sunspot Regions on the Disk 09/1623 UTC (SDO Continuum): 2
The Largest Event: C1.8 from Region 4498 at 09/1640 UT
X-ray background flux (1.0-8.0 A) August 08: B2.3
Radio Flux 10.7 cm at 08/2300 UTC (Penticton): 92
Solar Wind Speed at 09/1625 UTC: 425.9 km/s, Density: 2 p/cm^3


Forecast:

activity level will be very low to low
Event probabilities: Class C: 30, Class M: 05, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B1.2 - B1.8
Radio Flux 10.7 cm: a fluctuation in the range 88-92

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