Solar activity forecast for the period May 1 - 2, 2017


Issued: 2017 April 30 17:15 UTC


Analysis from April 29/1700 UTC to April 30/1700 UTC:

Sunspot Regions on the Disk 30/1623 UTC (SDO Continuum): 3
The Largest Event: B3.0 at 30/0057 UTC
X-ray background flux (1.0-8.0 A) April 29: A7.3
Radio Flux 10.7 cm at 29/2300 UTC (Penticton): 76
Solar Wind Speed at 30/1645 UTC: 381.8 km/s, Density: 6.7 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 10, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A6.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 69 - 83

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