Solar activity forecast for the period May 8 - 9, 2017


Issued: 2017 May 7 17:15 UTC


Analysis from May 06/1700 UTC to May 07/1700 UTC:

Sunspot Regions on the Disk 07/1623 UTC (SDO Continuum): 2
The Largest Event: B3.5 at 06/2009 UTC
X-ray background flux (1.0-8.0 A) May 6: A4.4
Radio Flux 10.7 cm at 06/2300 UTC (Penticton): 72
Solar Wind Speed at 07/1645 UTC: 347.0 km/s, Density: 7.2 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 A3.0 - A7.5
Radio Flux 10.7 cm: a fluctuation in the range 65 - 79

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