Activity level: mostly low
X-ray background flux (1.0-8.0 A): in the range
B2.0-C1.0
Radio flux (10.7 cm): a fluctuation in the range 100-150
f.u.
Events: class C (0-12/day), class M (0-7/period), class X (0/period),
proton (0-1/period)
Relative sunspot number (Ri): in the range
20-105
Jozef Lesko
RWC Prague, Astronomical Institute, Solar Dept.,
Ondrejov, Czech Republic
e-mail:
sunwatch(at)asu.cas.cz
_________________________________________________________________________
Geomagnetic
activity forecast for the period April 24 - 30, 2015
The next day, Fri 24
April, we expect at the Budkov observatory quiet to
unsettled conditions.
During the weekend, beginning at the Saturday 25
Apr, we expect also in
Budkov an active episode episode but the K-index
should not expect K=4.
At
the Monday 27 and Tuesday 28 April, the geomagnetic conditions are
expected
at most unsettled. Last two days, we expect quiet to
unsettled
conditions.
Tomas Bayer
Institute of Geophysics of the
ASCR
Geomagnetic observatory Budkov
(BDV)
_________________________________________________________________________
Geomagnetic
activity forecast for the period April 24 - May 20, 2015
Geomagnetic
field will be:
quiet on April 26, May 11
mostly quiet on May 3 - 6, 10, 19
- 20
quiet to unsettled on April 28, May 16 - 18
quiet to active on April
24, 27, May 2, 9, 15
active to disturbed on April 25, 30, May 1, 7 - 8,
12
disturbed on April 29, May 13 - 14
Amplifications of the solar wind
are still mostly unpredictable,
but some peaks are expected on April 24, May
3 - 5, 15 - 18, 20.
Remarks:
- Reliability of predictions is still
reduced, disturbance rate
is and remains elevated.
- Parentheses
indicate a lower probability of increased activity.
F. K. Janda,
OK1HH
Czech Propagation Interested Group
(OK1HH & OK1MGW, weekly
forecasts since 1978)
