Solar activity forecast for the period May 24 - 25, 2017


Issued: 2017 May 23 17:15 UTC


Analysis from May 22/1700 UTC to May 23/1700 UTC:

Sunspot Regions on the Disk 23/1623 UTC (SDO Continuum): 5
The Largest Event: B4.4 at 23/1421 UTC
X-ray background flux (1.0-8.0 A) May 22: A6.0
Radio Flux 10.7 cm at 22/2300 UTC (Penticton): 75
Solar Wind Speed at 23/1555 UTC: 469.0 km/s, Density: 2.0 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 68 - 82

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