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OK0NAG > SOLAR 09.11.17 17:16l 85 Lines 2587 Bytes #999 (0) @ EU
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Subj: Weekly Forecasts Bulletin
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Subject: Weekly Forecasts Bulletin
Date: Thu, 09 Nov 2017 17:06:26 +0100
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Solar activity forecast for the period November 10 - November 16, 2017
Activity level: mostly very low
X-ray background flux (1.0-8.0 A): in the range A3.0-A7.0
Radio flux (10.7 cm): a fluctuation in the range 66-76 f.u.
Events: class C (0-1/period), class M (0/period), class X (0/period), proton
(0/period)
Relative sunspot number (Ri): in the range 0-25
Martina Exnerova
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
Geomagnetic activity forecast for the period November 10 - November 16,
2017
Quiet: Nov 13 - 15
Unsettled: Nov 10 - 12, 14 - 16
Active: Nov 9 - 11
Minor storm: 0
Major storm: 0
Severe storm: 0
Geomagnetic activity summary:
At the Budkov observatory, we observed a minor storm event at November
7,
peaking at 18:42 UTC. After this event, the conditions are between
unsettled to active and, to the tomorrow (November 10) we expect the same
level. Further, we expect at most unsettled conditions till Sunday,
November 12, and also probable unsettled event at the end of forecasted
period, i.e. Thursday, November 16.
Between Monday, November 13, and Tuesday, November 15, we expect at most
quiet conditions only with minor 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 November 10 - December 6,
2017
Geomagnetic field will be:
quiet on November 13 - 14, 19, 24 - 28, December 2 - 3
mostly quiet on November 18, December 1
quiet to unsettled on November 16, 20, 23, 29
quiet to active on November 12, 15, 17, 30, December 30, December 4, 6
active to disturbed on November 10 - 11, 21 - 22, December 5
Amplifications of the solar wind from coronal holes are expected
on November 11 - 15, (16 - 19,), 20 - 24, (29 - 30,)
and on December (1 - 5,) 6 - 8
Remarks:
- Parenthesis means lower probability of activity enhancement.
- Current forecasts remains less reliable ...
F. K. Janda, OK1HH
(from Czech Propagation Interested Group
compiling this geomagnetic activity weekly forecasts since 1978)
e-mail: ok1hh(at)rsys.cz
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