Solar activity forecast for the period February 16 - 17, 2018


Issued: 2018 February 15 17:10 UTC
                         
                         
Analysis from February 14/1700 UTC to February 15/1700 UTC: 

Sunspot Regions on the Disk 15/1623 UTC (SDO Continuum): 1
The Largest Event: B1.5 at 15/0314 UTC
X-ray background flux (1.0-8.0 A) February 14: A5.0
Radio Flux 10.7 cm at 14/2300 UTC (Penticton): 75
Solar Wind Speed at 15/1645 UTC: 382.9 km/s, Density: 12.7 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 20, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A4.5 - A6.5
Radio Flux 10.7 cm: a fluctuation in the range 72-77

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