Solar activity forecast for the period December 23 - December 29,
2016
Activity level: mostly very low to low
X-ray background flux
(1.0-8.0 A): in the range A4.5-B1.0
Radio flux (10.7 cm): a fluctuation in
the range 65-85 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
0-45
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 23 - December 29,
2016
Quiet: Dec 26 - 29
Unsettled: Dec 23 - 26
Active: Dec
23
Minor storm: 0
Major storm: 0
Severe storm: 0
Geomagnetic
activity summary:
Maximal geomagnetic activity has been observed at
Wednesday, Dec 21. The
local K-index reached K=5 for Budkov
observatory.
Currently, unsettled to active conditions are actual. We expect
unsettled
conditions till Dec 25, than, during vaning of the HSS solar wind,
we
expect at Dec 26 decrease geomagnetic activity to quiet to
unsettled.
Rest of the forecasted period, we expect at most quiet
geomagnetic
conditions only with possible isolated unsettled
event.
Tomas Bayer
RWC Prague
Institute of Geophysics of the ASCR,
Prague
Department of Geomagnetism
Budkov observatory
(BDV)
Geomagnetic activity forecast for the period December 23 - January
18, 2017
Geomagnetic field will be:
quiet on December 30 - 31,
January 1, 8 - 11
mostly quiet on December 27 - 28, January 2, 12, 15 -
16
quiet to unsettled on January 2 - 3, 14, 29
quiet to active on December
23 - 26, January 4, 6 - 7, 13, 17
active to disturbed on January 5,
18
Amplifications of the solar wind from coronal holes are expected
on
December 23 - 25, January 3 - 8, 17 - 18
Remark:
- 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
