Solar activity forecast for the period March 24 - March 30,
2017
Activity level: mostly very low to low
X-ray background flux
(1.0-8.0 A): in the range A4.0-A9.5
Radio flux (10.7 cm): a fluctuation in
the range 60-90 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
0-65
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 24 - March 30, 2017
Quiet: Mar
25 - 26
Unsettled: Mar 23 - 24, 27, 30
Active: Mar 27 - 30
Minor
storm: Mar 27 - 28
Major storm: 0
Severe storm: 0
Geomagnetic
activity summary:
After the last active event (March 21-22 when the local
K-index reached
K=4) we expect the main active to minor strom effect at the
end of
forecasted period (e.g. March 27-29). 27 days ago, the magnetic
activity
reached the minor storm level by significant synoptic maps
similarity and
the local K-index reached the value 5.
We expect unsettled
conditions the next two days (Fri - Sat March 24 -
25). Then, we ecpect
activity decrease to quiet to unsettled level (March
26 - 27) till the
active/minor storming possibility event expected to the
rest of forecasted
period.
Tomas Bayer
RWC Prague
Institute of Geophysics of the
ASCR, Prague
Department of Geomagnetism
Budkov observatory
(BDV)
Geomagnetic activity forecast for the period March 24 - April 19,
2017
Geomagnetic field will be:
quiet on March 25, April 8 - 9, 14
- 15
mostly quiet on April 13, 19
quiet to unsettled March 26 - 28,
April 10, 12, 18
quiet to active on March 24, 31, April 1 - 4, 6, 11, 17
active to disturbed on March 29 - 30, April 5, 7, 16
Amplifications
of the solar wind from coronal holes are expected
on March 24, 30 - 31, April
1 - 4, (5 - 8,) 12 - 13. (14,) 16 - 20
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
