:Issued: 2009 Jan 19 1229 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 90119
SIDC SOLAR BULLETIN 19 Jan 2009, 1214UT
SIDC FORECAST (valid from 1230UT, 19 Jan 2009 until 21 Jan 2009)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 19 Jan 2009  10CM FLUX: 072 / AP: 011
PREDICTIONS FOR 20 Jan 2009  10CM FLUX: 072 / AP: 017
PREDICTIONS FOR 21 Jan 2009  10CM FLUX: 073 / AP: 012
COMMENT: Only one sunspot group is currently visible on the solar disc
(Catania number 94, no NOAA number yet). Due to its small size and weak
magnetic field, as well as to the low X-ray background flux (below the A
level), we do not expect it to produce a significant flaring activity in
the coming hours. The interplanetary magnetic field reached 13 nT this
morning. This may be an indication of the arrival of the interaction
region between the slow and faster solar wind streams. The faster stream
is produced by a low-latitude coronal hole (currently situated near the
west limb). Active geomagnetic conditions are possible.

TODAY'S ESTIMATED ISN  : 007, BASED ON 05 STATIONS.

SOLAR INDICES FOR 18 Jan 2009
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 071
AK CHAMBON LA FORET    : ///
AK WINGST              : 002
ESTIMATED AP           : 002
ESTIMATED ISN          : 000, BASED ON 08 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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