Solar activity forecast for the period March 9 - March 15, 2018
Activity level: mostly very low
X-ray background flux (1.0-8.0 A): in the range A1.5-A4.0
Radio flux (10.7 cm): a fluctuation in the range 66-75 f.u.
Events: class C (0/period), class M (0/period), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 0-25
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
Geomagnetic activity forecast for the period March 9 - March 15, 2018
Quiet: Mar 10 - 13
Unsettled: Mar 9, 13 - 16
Active: Mar 14 - 15
Minor storm: possible Mar 14 - 15
Major storm: 0
Severe storm: 0
Geomagnetic activity summary:
Geomagnetic field is currently quiet. Next two days, we expect more unsettled conditions
but the activity should not exceed the unsettled level (K-index = 3). Since Sunday, March 11,
we expect at most quiet conditions only with isolated unsettled conditions. Wednesday,
March 14, the above mentioned active episode may start. Since March 14, we expect active
episode arrival, generally, it should reach the active level (K=4). At the Budkov observatory
and our latitudes, the storming event is possible but rather unlike. The active episode
will probably close the forecasted period.
Institute of Geophysics of the ASCR, Prague
Department of Geomagnetism
Budkov observatory (BDV)
Geomagnetic activity forecast for the period March 9 - April 3, 2018
Geomagnetic field will be:
quiet on March 12 - 13, 20, 29, April 1 - 2
mostly quiet on March 9, 19, 24, 28, 30 - 31, April 3
quiet to unsettled on March 10 - 11, 14 - 15, 19, 23, 25, 27
quiet to active on March 16, 21 - 22
active to disturbed on March 17 - 18, 26
Amplifications of the solar wind from coronal holes: can not be predicted
for the period before March 10, but I do not expect any significant upsurge.
Then solar wind will intensify on March (10,) 16 - 18, (19 - 20, 25 - 26,
- Parenthesis means lower probability of activity enhancement.
- With regard to ongoing changes, current forecasts remains less reliable
especially in the first half of March.
F. K. Janda, OK1HH
(from Czech Propagation Interested Group
compiling this geomagnetic activity weekly forecasts since 1978).