Solar activity forecast for the period March 31 - April 6,
2017
Activity level: mostly very low to low
X-ray background flux
(1.0-8.0 A): in the range A6.0-B2.5
Radio flux (10.7 cm): a fluctuation in
the range 65-95 f.u.
Events: class C (0-5/day), class M (0-1/period), class X
(0/period), proton (0/period)
Relative sunspot number (Ri): in the range
11-75
Tomas Blaha
RWC Prague, Astronomical Institute, Solar Dept.,
Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
Geomagnetic
activity forecast for the period March 31 - April 6, 2017
Quiet: Apr
6
Unsettled: Mar 31 - Apr 5
Active: Apr 3 - 5
Minor storm: 0
Major
storm: 0
Severe storm: 0
Geomagnetic activity summary:
The local
geomagnetic activity reached at Budkov observatory minor storm
level (Local
K-index at 5) at Monday, March 27.
Next day, we expect at most unsettled
level. During the first April week
(especially between April 3 and 5) more
active episodes are possible due
to the current high speed solar wind
recursive events.
Tomas Bayer
RWC Prague
Institute of
Geophysics of the ASCR, Prague
Department of Geomagnetism
Budkov
observatory (BDV)
Geomagnetic activity forecast for the period March 31 -
April 25, 2017
Geomagnetic field will be:
quiet on April 9 - 10,
14 - 16, 20 - 22
mostly quiet on April 6, 8, 11
quiet to unsettled April
4, 12 - 13, 19
quiet to active on April 3, 5, 7, 23, 25
active to
disturbed on March 31, April 1 - 2, 17 - 18, 24
Amplifications of the
solar wind from coronal holes are expected
on March 31, April 1 - 4, (5 - 8,)
12 - 13. (14,) 16 - 20, 25
Remark:
- Parenthesis means lower
probability of activity enhancement and/or
lower reliability of
prediction.
F. K. Janda, OK1HH
Czech Propagation Interested
Group
OK1HH compiling weekly forecasts since 1978
e-mail: ok1hh(at)rsys.cz
