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


Issued: 2017 April 14 17:15 UTC


Analysis from April 13/1700 UTC to April 14/1700 UTC:

Sunspot Regions on the Disk 14/1623 UTC (SDO Continuum): 2
The Largest Event: B1.2 at 14/1621 UTC
X-ray background flux (1.0-8.0 A) April 13: A4.8
Radio Flux 10.7 cm at 13/2300 UTC (Penticton): 73
Solar Wind Speed at 14/1644 UTC: 377.4 km/s, Density: 3.0 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 10, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A4.0 - A8.5
Radio Flux 10.7 cm: a fluctuation in the range 68 - 78

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