[A-DX] Funkprognose 16.-22. Juli

[Wolf Harranth <harranth@xxxxxxxx>]

_____________________________________________________________________

Solar-activity forecast for the period Jul 16 - 22, 2004

Activity level: mostly moderate
Radio flux (10.7 cm): a fluctuation in the range 160-120 f.u.
Flares: weak (numerous), middle (O-2/day), large (0-2/period)
Relative sunspot number: in the range 110-160

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

Geomagnetic activity forecast for the period Jul 16 to Jul 22, 2004

quiet: Jul 20, 21 and 22
quiet to unsettled: Jul 19
unsettled: Jul 18
unsettled to active: Jul 16 and 17
active: 0
minor storm: 0
major storm: 0
severe storm: 0

Geomagnetic activity summary: geomagnetic field was quiet on
Jul 8, 9, 10 and 14, unsettled on Jul 12 and 13, unsettled to active
on Jul 11.

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

Geomagnetic activity forecast for the period of one solar rotation

active:    Jul 16-18, 21, 23, 25-30, Aug (1,) 7-9
disturbed: Jul 16, (18, 23, 25,) 26(-27, 29-30,), Aug 7-8(-9)
quiet:     Jul (19-20,) 22, (24, 31,) Aug (2,) 3-4, (5-6)

Survey:   mostly quiet: Jul 8
          quiet to unsettled: Jul 9-10, 14
          quiet to active: Jul 7
          mostly unsettled: Jul 12-13
          unsettled to active: Jul 11

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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