Solar activity forecast for the period February 16 - February 17, 2026

Issued: 2026 February 15 17:00 UTC


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

Sunspot Regions on the Disk 15/1415 UTC (SDO Continuum): 6
The Largest Event: C1.3 from Region S13W46 at 15/0727 UT
X-ray background flux (1.0-8.0 A) February 14: B5.2
Radio Flux 10.7 cm at 14/2300 UTC (Penticton): 117
Solar Wind Speed at 15/1645 UTC: 605.8 km/s, Density: 1.5 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 75, Class M: 20, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B4.0-B8.0
Radio Flux 10.7 cm: a fluctuation in the range 105-129

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