:Issued: 2007 Jan 27 1234 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 70127
SIDC SOLAR BULLETIN 27 Jan 2007, 1225UT
SIDC FORECAST (valid from 1230UT, 27 Jan 2007 until 29 Jan 2007)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 27 Jan 2007  10CM FLUX: 081 / AP: 003
PREDICTIONS FOR 28 Jan 2007  10CM FLUX: 080 / AP: 019
PREDICTIONS FOR 29 Jan 2007  10CM FLUX: 080 / AP: 011
COMMENT: The strong flaring activity of the Catania sunspot group 19,
NOAA AR 0940 (0933 during the previous rotation), has ceased. In spite
of the appearance of this active region on the visible side of the Sun,
the background X-ray flux is decreasing. C-flares are, however, still
possible. The Earth is currently inside the slow solar wind flow, so the
geomagnetic conditions are expected to remain quiet in the coming hours.
Tomorrow, however, we expect the arrival of a fast flow from the
low-latitude coronal hole in the southern hemisphere. We expect active
geomagnetic conditions, with possible occasional minor storm intervals.

TODAY'S ESTIMATED ISN  : 008, BASED ON 06 STATIONS.

SOLAR INDICES FOR 26 Jan 2007
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 080
AK CHAMBON LA FORET    : 006
AK WINGST              : ///
ESTIMATED AP           : 003
ESTIMATED ISN          : 008, BASED ON 07 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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