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


Issued: 2017 July 12 17:15 UTC


Analysis from July 11/1700 UTC to July 12/1700 UTC:

Sunspot Regions on the Disk 12/1627 UTC (SDO Continuum): 3
The Largest Event: C1.2 at 11/2031 UTC
X-ray background flux (1.0-8.0 A) July 11: B1.3
Radio Flux 10.7 cm at 11/2300 UTC (Penticton): 92
Solar Wind Speed at 12/1645 UTC: 451.4 km/s, Density: 1.7 p/cm^3


Forecast:
 
activity level will be low to moderate
Event probabilities: Class C: 70, Class M: 15, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A9.0 - B2.5
Radio Flux 10.7 cm: a fluctuation in the range 85 - 98

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