[A-DX] Funkprognose 13.-19.August

[Wolf Harranth <harranth@xxxxxxxx>]

_____________________________________________________________________

Solar-activity forecast for the period Aug 13 - 19, 2004

Activity level: mostly low to moderate
Radio flux (10.7 cm): a fluctuation in the range 120-170 f.u.
Flares: weak (10-20/day), middle (0-2/day), large (0-2/period)
Relative sunspot number: in the range 80-140

Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch@xxxxxxxxxx
(RWC Prague)
_____________________________________________________________________

Geomagnetic activity forecast for the period Aug 13 to Aug 19, 2004

quiet: Aug 17, 18 and 19
quiet to unsettled: Aug 15 and 16
unsettled: Aug 13
unsettled to active: Aug 14
active: 0
minor storm: 0
major storm: 0
severe storm: 0

Geomagnetic activity summary: geomagnetic field was quiet on
Aug 5, 6 and 8, unsettled on Aug 7, 9 and 11, unsettled to active
on Aug 10.

RWC Prague, Geophysical Institute Prague, Geomagnetic Dept,
Czech Republic
e-mail: geom@xxxxxxxxx
_____________________________________________________________________

Geomagnetic activity forecast for the period of one solar rotation

active:    Aug (13,) 14-15, (16,) 18-24, (26, 29,) Sep (1-3,) 6-7
disturbed: Aug (14-15,) 18-21, (22, 23), 24(-25), Sep 6-7
quiet:     Aug (17, 25,) 27-28, 30-31, Sep 4

Survey:   quiet: Aug 8
          mostly quiet: Aug 4
          quiet to unsettled: Aug 2-3, 5-6
          mostly unsettled: Aug 7, 11
          quiet to active: Aug 9-10

Remarks: Days in brackets () => lower probability of activity
         (or lower accuracy of) forecast, depending on previous
         development on the Sun. In addition at this time of
         the solar cycle, space weather conditions are frequently
         determined by short timescale events, usually not able
         to be forecasted.

Frantisek K. Janda, OK1HH, Czech Propagation Interested Group
e-mail: franta.janda@xxxxxxxx
_____________________________________________________________________

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