Solar activity forecast for the period May 4 - 5, 2017


Issued: 2017 May 3 17:15 UTC


Analysis from May 02/1700 UTC to May 03/1700 UTC:

Sunspot Regions on the Disk 03/1623 UTC (SDO Continuum): 1
The Largest Event: B1.3 at 02/1936 UTC
X-ray background flux (1.0-8.0 A) May 2: A7.2
Radio Flux 10.7 cm at 02/2300 UTC (Penticton): 76
Solar Wind Speed at 03/1645 UTC: 359.8 km/s, Density: 6.5 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 A5.5 - 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