Solar activity forecast for the period January 19 - 20, 2018


Issued: 2018 January 18 17:15 UTC
                         
                         
Analysis from January 17/1700 UTC to January 18/1700 UTC: 

Sunspot Regions on the Disk 18/1623 UTC (SDO Continuum): 1
The Largest Event: B9.7 from Region 2696 at 18/0735 UTC
X-ray background flux (1.0-8.0 A) January 17: A3.5
Radio Flux 10.7 cm at 17/2300 UTC (Penticton): 71
Solar Wind Speed at 18/1645 UTC: 320.9 km/s, Density: 3.7 p/cm^3


Forecast:
 
activity level will be very low 
Event probabilities: Class C: 05, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A2.5 - A5.5
Radio Flux 10.7 cm: a fluctuation in the range 68-76

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