Solar-activity forecast for the period Mar 19 - 25, 2010

Activity level: very low to low
Radio flux (10.7 cm): a fluctuation in the range 82-92 f.u.
Flares: weak (0-8/day)
Relative sunspot number: in the range 15-40

Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)

Geomagnetic activity forecast for the period Mar 19 to Mar 25, 2010

quiet: Mar 19 to 25
quiet to unsettled: 0
unsettled: 0
active: 0
minor storm: 0
major storm: 0
severe storm: 0

Geomagnetic activity summary: geomagnetic field was quiet on
Mar 11 and from Mar 13 to 17, unsettled on Mar 12.

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:

unsettled to active: Mar (21, 24, 31) Apr 6, 14
quiet to unsettled: Mar (23,) Apr (2,) 7 - 8, 10, (12,) 13
quiet: Mar 19 - 20, 22, 25 - 30, Apr 1, 3 - 5, 9, 11

Survey: quiet: Mar 8 - 9 (corrected),
        mostly quiet: Mar 13 - 16
        quiet to unsettled: -
        quiet to active: Mar 10 (corrected), 11 - 12, 17
        quiet to minor storm: -
        mostly unsettled: -
        unsettled to disturbed: -
        mostly active: -
        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