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OK0NAG > SOLAR 04.01.18 20:28l 79 Lines 2344 Bytes #999 (0) @ EU
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Subj: Weekly Forecasts Bulletin
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Date: Thu, 04 Jan 2018 19:15:28 +0100
Subject: Weekly Forecasts Bulletin
User-agent: Heirloom mailx 12.5 7/5/10
Solar activity forecast for the period January 5 - January 11, 2018
Activity level: mostly very low
X-ray background flux (1.0-8.0 A): in the range A2.5-A6.0
Radio flux (10.7 cm): a fluctuation in the range 66-76 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 0-35
Martina Exnerova
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
Geomagnetic activity forecast for the period January 5 - January 11, 2018
Quiet: Jan 5 - 8, Jan 10 - 11
Unsettled: Jan 8 - 10
Active: possible Jan 8 - 10
Minor storm: 0
Major storm: 0
Severe storm: 0
Geomagnetic activity summary:
At most, we expect quiet to unsettled condition the next week. Till the
nearest Saturday, January 6, we expect at most quiet conditions. Between
Sunday, January 7, and Wednesday, January 10, more unsettled conditions
with possible active episode are probable. The rest of the forecasted
period, we expect quiet or quiet to unsettled conditions return.
Tomas Bayer
RWC Prague
Institute of Geophysics of the ASCR, Prague
Department of Geomagnetism
Budkov observatory (BDV)
Geomagnetic activity forecast for the period January 5 - January 31, 2018
Geomagnetic field will be:
quiet on January 5, 11, 17 - 19, 31
mostly quiet on January 6, 10, 30
quiet to unsettled on January 12, 15 - 16, 23 - 26
quiet to active on January 7, 20, 22, 27 - 29
active to disturbed on January 8 - 9, 13 - 14, 21
Amplifications of the solar wind from coronal holes are expected
on December January (6 - 8,) 10 - 12, (13,) 19 - 20, (21 - 22,
28-31).
Remark:
- Parenthesis means lower probability of activity enhancement.
http://ok1hh.sweb.cz/PF2018HH_afj.JPG
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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