Solar activity forecast for the period June 9 - June 15, 2017


Activity level: mostly very low to low
X-ray background flux (1.0-8.0 A): in the range A5.0-B1.0
Radio flux (10.7 cm): a fluctuation in the range 69-85 f.u.
Events: class C (0-6/period), class M (0-1/period), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 0-60

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


Geomagnetic activity forecast for the period June 9 - June 15, 2017


Quiet: Jun 9 - 12, 14 - 15
Unsettled: Jun 13 - 14
Active:    Jun 14 - 15
Minor storm: possible Jun 15
Major storm: 0
Severe storm: 0

Geomagnetic activity summary:
Except the last days, we expect at most quiet to unsettled conditions to
the next week. Between June 13 - 14 the unsettled conditions can be more
frequent but the general activity forecasted should remain at the quiet to
unsettled level.
Because of the last flare occured at the central part of solar disk, we
expect an active episiode at the end of forecasted period. About June 15,
active conditions can also reach minor storm level.

Tomas Bayer
RWC Prague
Institute of Geophysics of the ASCR, Prague
Department of Geomagnetism
Budkov observatory (BDV)

Geomagnetic activity forecast for the period June 9 - June 15, 2017

Geomagnetic activity forecast will be issued up on June 15.