Solar activity forecast for the period May 30 - 31, 2017


Issued: 2017 May 29 17:15 UTC


Analysis from May 28/1700 UTC to May 29/1700 UTC:

Sunspot Regions on the Disk 29/1623 UTC (SDO Continuum): 1
The Largest Event: C3.3 from Region 2659 at 28/1928 UTC
X-ray background flux (1.0-8.0 A) May 28: B1.1
Radio Flux 10.7 cm at 28/2300 UTC (Penticton): 78
Solar Wind Speed at 29/1645 UTC: 355.3 km/s, Density: 0.1 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 35, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A9.0 - B2.0
Radio Flux 10.7 cm: a fluctuation in the range 71 - 85

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