Solar-activity forecast for the period Jul 17 - 23, 2009 Activity level: predominantly very low Radio flux (10.7 cm): a fluctuation in the range 67-73 f.u. Flares: weak (0-2/day) Relative sunspot number: in the range 0-25 Astronomical Institute, Solar Dept., Ondrejov, Czech Republic e-mail: sunwatch(at)asu.cas.cz (RWC Prague) _________________________________________________________________ Geomagnetic activity forecast for the period Jul 17 to Jul 23, 2009 quiet: Jul 17 to 20 and 23 quiet to unsettled: Jul 22 unsettled: Jul 21 active: 0 minor storm: 0 major storm: 0 severe storm: 0 Geomagnetic activity summary: geomagnetic field was quiet on Jul 9, 11, 12 and 15, quiet to unsettled on Jul 10 and 14, unsettled on Jul 13. 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 active to disturbed: - unsettled to active: July 21, (22, 25,) August 9 quiet to unsettled: July 18, 24, (31,) Aug 2, 6, 10, (12) quiet: July (17,) 19 - 20, 23, 26 - 30, Aug 1, 3, (4 - 5,) 7 - 8, 11 Survey: quiet: July 8, 11 - 12, 15 quiet to unsettled: July 9 - 10 quiet to active: July 13 - 14 Notices: Long period of quiet conditions before the enhancement of solar activity is probably ending slowly. Days in brackets refer to a lower probability of possible activity enhancements depending on previous development on the sun. F. K. Janda, OK1HH, Czech Propagation Interested Group e-mail: franta.janda(at)quick.cz