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OK0NAG > SOLAR 17.02.11 14:39l 91 Lines 3396 Bytes #999 (0) @ EU
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_____________________________________________________________________
Solar-activity forecast for the period Feb 18 - 24, 2011
Activity level: mostly low to moderate
Radio flux (10.7 cm): a fluctuation in the range 115-80 f.u.
Flares: weak (numerous), middle (0-3/day), large (0-2/period)
Relative sunspot number: in the range 75-30
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_____________________________________________________________________
Geomagnetic activity forecast for the period Feb 18 to Feb 24, 2011
quiet: Feb 22, 23 and 24
quiet to unsettled: Feb 21
unsettled: Feb 20
unsettled to active: Feb 19
active: Feb 18
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary:
geomagnetic field was quiet from Feb 10 to 13 and 16,
quiet to unsettled on Feb 15, unsettled on Feb 14.
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: Feb 18, (19,) 21, Mar 3, (4 - 5,) 13
unsettled to active: Feb 20, Mar 1
quiet to unsettled: Feb 22, 28, Mar 6, 10
mostly quiet: Feb 25, 27, Mar 14, 15 - 16
quiet: Feb 23 - 24, 26, Mar 2, 7 - 9, 11 - 12
Survey: quiet: Feb 9 - 10, 12 - 13, 16
mostly quiet: Feb 11, 15
quiet to unsettled: -
quiet to active: -
quiet to minor storm: -
quiet to disturbed: -
quiet to major storm: Feb 14
mostly unsettled: -
unsettled to active: -
unsettled to minor storm: -
minor to major storm: -
active to disturbed: -
disturbed: -
Notices:
High probability of changes in solar wind which may caused
changes in magnetosphere and ionosphere is expected for
February (21,) 28 and March 1, (3,) 4 - 6, 9, 14 - 15.
Days in brackets refer to a lower probability of possible
activity enhancements depending on previous development
on the Sun. Present forecasts are unreliable.
F. K. Janda (OK1HH), Czech Propagation Interested Group
e-mail: ok1hh(at)rsys.cz
_____________________________________________________________________
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