Issued: 2026 September 14 17:00 UTC


Analysis from September 13/1700 UTC to September 14/1700 UTC:

Sunspot Regions on the Disk 14/1500 UTC (SDO Continuum): 5
The Largest Event: C1.4 from region S14W07 at 13/1945 UT
X-ray background flux (1.0-8.0 A) September 13: B3.1
Radio Flux 10.7 cm at 13/2300 UTC (Penticton): 109
Solar Wind Speed at 14/1645 UTC: 366.2 km/s, density : 3.6 p/cm^3


Forecast:

Activity level will be: very low to low - explanation
Event probabilities: Class C: 45%, Class M: 10%, Class X: 01%, Proton: 01%
X-ray background flux (1.0-8.0 A): in the range B2.5-B3.5
Radio Flux 10.7 cm: a fluctuation in the range 97-121

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