Solar activity forecast for the period August 19 - August 20, 2022

Issued: 2022 August 18 17:00 UTC


Analysis from August 17/1700 UTC to August 18/1700 UTC:

Sunspot Regions on the Disk 18/1130 UTC (SDO Continuum): 7
The Largest Event: M1.5 from Region 3078 at 18/1055 UT
X-ray background flux (1.0-8.0 A) August 17: B6.5
Radio Flux 10.7 cm at 17/2300 UTC (Penticton): 121
Solar Wind Speed at 18/1700 UTC: 0 km/s, Density: 0 p/cm^3


Forecast:

activity level will be moderate
Event probabilities: Class C: 99, Class M: 40, Class X: 10, Proton: 10
X-ray background flux (1.0-8.0 A): in the range B6.5-C1.2
Radio Flux 10.7 cm: a fluctuation in the range 110-136

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