Solar activity forecast for the period August 05 - August 06, 2026

Issued: 2026 August 04 17:00 UTC


Analysis from August 03/1700 UTC to August 04/1700 UTC:

Sunspot Regions on the Disk 04/1415 UTC (SDO Continuum): 7
The Largest Event: C1.2 from Region S18E79 at 04/1158 UT
X-ray background flux (1.0-8.0 A) August 03: B8.4
Radio Flux 10.7 cm at 03/2300 UTC (Penticton): 125
Solar Wind Speed at 04/1645 UTC: 450.2 km/s, Density: 2.1 p/cm^3


Forecast:

activity level will be very low to low
Event probabilities: Class C: 75, Class M: 25, 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