Solar activity forecast for the period February 13 - 14, 2017


Issued: 2017 February 12 18:30 UTC


Analysis from February 11/1700 UTC to February 12/1815 UTC:

Sunspot Regions on the Disk 12/1741 UTC (SDO Continuum): 1
The Largest Event: B1.5 at 12/0434 UTC
X-ray background flux (1.0-8.0 A) February 11: A6.2
Radio Flux 10.7 cm at 11/2300 UTC (Penticton): 76
Solar Wind Speed at 12/1800 UTC: 351.8 km/s, Density: 2.6 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 - A8.5
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