Solar activity forecast for the period May 15 - 21, 2015
Activity level:
mostly low
X-ray background flux (1.0-8.0 A): in the range B2.5-B9.5
Radio
flux (10.7 cm): a fluctuation in the range 100-155 f.u.
Events: class C
(0-13/day), class M (0-4/day), class X (0-1/period),
proton
(0-1/period)
Relative sunspot number (Ri): in the range 20-110
Jozef
Lesko
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech
Republic
e-mail:
sunwatch(at)asu.cas.cz
_________________________________________________________________________
Geomagnetic
activity forecast for the period May 15 - 21, 2015
After the main active
episode in the last two years, we expect at the
Budkov observatory quiet to
unsettled conditions at the May 15 - 16.
May 17 - 18, unsettled conditions
with possible active episode are
expectable. The unsettled conditions are
expected also in the days May 18
- 20 because the near-equatorial coronal
hole.
The last day of forecasted weeek, we expect quite to unsettled
conditions.
Tomas Bayer
Institute of Geophysics ASCR
Budkov
Geomagnetic Observatory
(BDV)
_________________________________________________________________________
Geomagnetic
activity forecast for the period May 15 - June 10, 2015
Geomagnetic field
will be:
quiet on May 20 - 23, 26 - 27, June 5 - 6
mostly quiet on May 24,
28, June 2 - 4
quiet to unsettled on May 19, 25, 29, 31
quiet to active on
May 15 - 17, 30, June 7
active to disturbed on May 18, June 1, 8 -
9
disturbed on June 10
Amplifications of the solar wind are still
mostly unpredictable,
but some peaks are expected on May 15 - 18, 20, 22, 30
- 31,
June 2 - 3, 9.
Remark:
- Reliability of predictions is still
reduced, disturbance rate
is and remains elevated.
F. K. Janda,
OK1HH
Czech Propagation Interested Group
(OK1HH & OK1MGW, weekly
forecasts since 1978)
e-mail: ok1hh(at)rsys.cz
