Solar activity forecast for the period December 16 - December 22,
2016
Activity level: mostly very low to low
X-ray background flux
(1.0-8.0 A): in the range A4.0-B1.0
Radio flux (10.7 cm): a fluctuation in
the range 60-85 f.u.
Events: class C (0-1/day), class M (0/period), class X
(0/period), proton (0/period)
Relative sunspot number (Ri): in the range
0-40
Tomas Blaha
RWC Prague, Astronomical Institute, Solar Dept.,
Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
Geomagnetic
activity forecast for the period December 16 - December 22,
2016
Quiet: Dec 16 - 17
Unsettled: Dec 18 - 20
Active: Dec 18 -
22
Minor storm: Dec 21 - 22
Major storm: possible Dec 21
Severe storm:
0
Geomagnetic activity summary:
We expect quiet to unsettled
conditions until Dec 17.
The second half of forecasted period, we expect two
active episodes. The
first active episode (K-index at 4) is probable at Dec
18-19. The main
active episode including minor storm is expected for the last
days of the
forecasted period (Dec 21-22).
Tomas Bayer
RWC
Prague
Institute of Geophysics of the ASCR, Prague
Department of
Geomagnetism
Budkov observatory (BDV)
Geomagnetic activity forecast
for the period December 16 - January 11, 2017
Geomagnetic field will
be:
quiet on December 16, 30 - 31, January 10 - 11
mostly quiet on
December 17, 26 - 29, January 8 - 9
quiet to unsettled on December 18 - 19,
23 - 25, January 1 - 3
quiet to active on December 20, January 6 -
7
active to disturbed on December 21 - 22, January 4 -
5
Amplifications of the solar wind from coronal holes are expected:
on
December 17 - 23, January 2 - 7
Petr Kolman, OK1MGW
Czech Propagation
Interested Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail:
kolmanp(at)razdva.cz
