Solar activity forecast for the period February 15 - 16, 2017


Issued: 2017 February 14 18:30 UTC


Analysis from February 13/1700 UTC to February 14/1815 UTC:

Sunspot Regions on the Disk 14/1741 UTC (SDO Continuum): 2
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) February 13: A6.3
Radio Flux 10.7 cm at 13/2300 UTC (Penticton): 76
Solar Wind Speed at 14/1800 UTC: 301.7 km/s, Density: 4.8 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 15, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.0 - A8.0
Radio Flux 10.7 cm: a fluctuation in the range 72 - 80

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