venerdì 30 ottobre 2015

Solar activity forecast for the period October 30 - November 5, 2015

Activity level: mostly low to moderate
X-ray background flux (1.0-8.0 A): in the range B1.0-B8.5
Radio flux (10.7 cm): a fluctuation in the range 85-125 f.u.
Events: class C (0-15/day), class M (0-4/day), class X (0/period),
        proton (0-1/period)
Relative sunspot number (Ri): in the range 10-90

Jozef Lesko
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
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Geomagnetic activity forecast for the period October 30 - November 5, 2015

First half of forecasted week, we expect quiet to unsettled conditions.
The second half of the forecasted interval, we expect active conditions
about November 4. The active conditions may culminate by minor storm
between November 3-4.

Tomas Bayer
Institute of Geophysics ASCR
Budkov Geomagnetic Observatory (BDV)
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Geomagnetic activity forecast for the period October 30 - November 25, 2015

Geomagnetic field will be:
quiet on November 15 - 16
mostly quiet on November 14, 17 - 24
quiet to unsettled on October 30, November 6, 10, 25
quiet to active on October 31, November 1 - 3, 7 - 9, 11 - 13
active to disturbed on November 4 - 5

Amplifications of the solar wind are expected on November 1 - 5, 11 - 13


Remarks:
- Reliability of predictions remains reduced in present solar cycle phase.
- Parenthesis means lower probability of activity enhancement.

Petr Kolman, OK1MGW
Czech Propagation Interested Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail: kolmanp(at)razdva.cz