Solar activity forecast for the period March 28 - 29, 2017


Issued: 2017 March 27 17:15 UTC


Analysis from March 26/1700 UTC to March 27/1700 UTC:

Sunspot Regions on the Disk 27/1641 UTC (SDO Continuum): 3
The Largest Event: C1.6 from Region 2644 at 27/0004 UTC
		   C3.2 at 27/1107 UTC (Events not associated with currently named NOAA regions)
X-ray background flux (1.0-8.0 A) March 26: A3.0 (invalid data?)
Radio Flux 10.7 cm at 26/2300 UTC (Penticton): 78
Solar Wind Speed at 27/1645 UTC: 616.0 km/s, Density: 5.6 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 25, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A7.5 - B2.5
Radio Flux 10.7 cm: a fluctuation in the range 74 - 82

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