Solar activity forecast for the period June 3 - 4, 2017


Issued: 2017 June 2 17:15 UTC


Analysis from June 01/1700 UTC to June 02/1700 UTC:

Sunspot Regions on the Disk 02/1623 UTC (SDO Continuum): 1
The Largest Event: C3.0 at 01/2259 UTC
		   C1.2 from Region 2661 at 02/1223 UTC
X-ray background flux (1.0-8.0 A) June 1: B2.7
Radio Flux 10.7 cm at 01/2300 UTC (Penticton): 82
Solar Wind Speed at 02/1645 UTC: 372.3 km/s, Density: 6.9 p/cm^3


Forecast:
 
activity level will be low to moderate
Event probabilities: Class C: 60, Class M: 20, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B1.0 - B3.5
Radio Flux 10.7 cm: a fluctuation in the range 75 - 89

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