Solar activity forecast for the period December 4 - 10, 2015

Activity level: mostly very low to low
X-ray background flux (1.0-8.0 A): in the range A8.5-B6.5
Radio flux (10.7 cm): a fluctuation in the range 80-120 f.u.
Events: class C (0-10/day), class M (0-2/period), class X (0/period),
        proton (0/period)
Relative sunspot number (Ri): in the range 10-80

Jozef Lesko
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
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Geomagnetic activity forecast for the period December 4 - 10, 2015

Coming three days, we expect quiet to unsettled conditions. Monday, Dec 7,
and tuesday, Dec 8, unsettled to active conditions are probable For the
Tuesday, Dec 8, commonly active conditons are expectable). Wednesday, Dec
9, unsettled conditions are probable. The last day, Dec 10, we expect
quiet to unsettled conditions.

Tomas Bayer
Institute of Geophysics ASCR
Budkov Geomagnetic Observatory (BDV)
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Geomagnetic activity forecast for the period December 4 - 30, 2015

Geomagnetic field will be:
quiet on December 9, 17 - 23, 30
mostly quiet on December 11, 16, 24 - 25, 28
quiet to unsettled on December 4 - 5, 12 - 14
quiet to active on December 10, 15, 26 - 27,
active to disturbed on December 6 - 8, 29

Amplifications of the solar wind are expected on December (5 - 7,)
8 - 10, (11 - 12, 16 - 20,) 26 - 27, (28 - 29)

Remarks:
- Reliability of predictions remains reduced.
- Parenthesis means lower probability of activity enhancement.

F. K. Janda, OK1HH
Czech Propagation Interested Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail: ok1hh(at)rsys.cz