Solar activity forecast for the period February 16 - February 17, 2025

Issued: 2025 February 15 17:00 UTC


Analysis from February 14/1700 UTC to February 15/1700 UTC:

Sunspot Regions on the Disk 15/1548 UTC (SDO Continuum): 10
The Largest Event: M1.8 from Region 3990 at 14/2057 UT
X-ray background flux (1.0-8.0 A) February 14: C1.0
Radio Flux 10.7 cm at 14/2300 UTC (Penticton): 179
Solar Wind Speed at 15/1645 UTC: 609 km/s, Density: 1.9 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 99, Class M: 55, Class X: 25, Proton: 10
X-ray background flux (1.0-8.0 A): in the range C1.0-C1.2
Radio Flux 10.7 cm: a fluctuation in the range 160-185

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