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OK0NAG > SOLAR 06.05.10 11:20l 87 Lines 2571 Bytes #999 (0) @ EU
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Subj: Weekly Forecasts Bulletin
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Date: Thu, 6 May 2010 12:14:10 +0200 (CEST)
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_____________________________________________________________________
Solar-activity forecast for the period May 7 - 13, 2010
Activity level: mostly very low to low
Radio flux (10.7 cm): a fluctuation in the range 78-85 f.u.
Flares: weak (1-8/day), middle (0-2/period)
Relative sunspot number: in the range 25-60
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_____________________________________________________________________
Geomagnetic activity forecast for the period May 7 to May 13, 2010
quiet: May 7, 12 and13
quiet to unsettled: May 9 and 10
unsettled: May 8 and 11
active: 0
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary: geomagnetic field was quiet on
Apr 29 and 30, May 1, quiet to unsettled on May 5, unsettled on
May 3 and 4, active on May 2.
RWC Prague, Geophysical Institute Prague, Geomagnetic Dept,
Czech Republic
e-mail: geom(at)ig.cas.cz
_____________________________________________________________________
Geomagnetic activity forecast for the period of one solar rotation
Geomagnetic field during the following solar rotation should be:
active to disturbed: May 9, (10,) 12, (29,) 30, Jun (1)
unsettled to active: May 20, 25 - 26, 31
quiet to unsettled: May 11, 15, 27 - 28, Jun 2
quiet: May 7 - 8, 13 - 14, 16 - 19, 21 - 24
Survey: quiet: Apr 28, 30, May 1
mostly quiet: Apr 29
quiet to unsettled: May 5
quiet to active: May 4
quiet to minor storm: -
quiet to disturbed: May 2
mostly unsettled: -
unsettled to active: May 3
minor to major storm: -
active to disturbed: -
disturbed: -
Notices:
Days in brackets refer to a lower probability of possible
activity enhancements depending on previous development on the sun.
Accuracy and reliability of forecasts are generally low at present.
F. K. Janda, OK1HH, Czech Propagation Interested Group
e-mail: ok1hh(at)rsys.cz
_____________________________________________________________________
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