:Issued: 2006 Mar 20 1227 UTC
:Product: documentation at http://www.sidc.be/products/meu
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# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
# (RWC Belgium)                                                      #
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SIDC URSIGRAM 60320
SIDC SOLAR BULLETIN 20 Mar 2006, 1219UT
SIDC FORECAST (valid from 1230UT, 20 Mar 2006 until 22 Mar 2006)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 20 Mar 2006  10CM FLUX: 078 / AP: 015
PREDICTIONS FOR 21 Mar 2006  10CM FLUX: 080 / AP: 012
PREDICTIONS FOR 22 Mar 2006  10CM FLUX: 083 / AP: 012
COMMENT: Catania sunspot group 15 (NOAA ARs 10860 and 10862) has grown
up and possesses a complicated magnetic field configuration. A C-flare
from this group is possible. The Earth is now situated in the fast solar
wind flow (with a speed around 700 km/s). The IMF magnitude has
decreased in comparison with yesterday's values, so we do not expect a
significant increase of the geomagnetic activity. Occasional periods of
K = 4 are possible. The fast flow is produced by the equatorial coronal
hole now situated in the Western hemisphere.

TODAY'S ESTIMATED ISN  : 019, BASED ON 03 STATIONS.

SOLAR INDICES FOR 19 Mar 2006
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 075
AK CHAMBON LA FORET    : 048
AK WINGST              : 036
ESTIMATED AP           : 038
ESTIMATED ISN          : 017, BASED ON 04 STATIONS.

NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX  END  LOC    XRAY OP  10CM RADIO BURST TYPES     Catania NOAA NOTE
NONE
END
BT
 
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