Issued: 2025 July 16 17:00 UTC


Analysis from July 15/1700 UTC to July 16/1700 UTC:

Sunspot Regions on the Disk 16/0658 UTC (SDO Continuum): 12
The Largest Event: C5.0 from region 4143 at 16/0358 UT
X-ray background flux (1.0-8.0 A) July 15: B9.7
Radio Flux 10.7 cm at 15/2300 UTC (Penticton): 139
Solar Wind Speed at 16/1636 UTC: 500.1 km/s, density : 0.1 p/cm^3


Forecast:

Activity level will be: low - explanation
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 B8.5-C1.5
Radio Flux 10.7 cm: a fluctuation in the range 120-150

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