SIDC URSIGRAM 30104 SIDC SOLAR BULLETIN 04 Jan 2003, 1204UT SIDC FORECAST (valid from 1230UT, 04 Jan 2003 until 06 Jan 2003) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : NO FORECAST PREDICTIONS FOR 04 Jan 2003 10CM FLUX: 140 / AP: 018 PREDICTIONS FOR 05 Jan 2003 10CM FLUX: 145 / AP: 012 PREDICTIONS FOR 06 Jan 2003 10CM FLUX: 150 / AP: 012 COMMENT: The solar wind speed remains high and stable around 600 km/sec. The Bz component of the interplanetary magnetic field being now slightly positive, no significant magnetic disturbances are expected except maybe some isolated periods of active conditions. SOLAR INDICES FOR 3 Jan 2003 SUNSPOT INDEX : 113 10CM SOLAR FLUX : 138 AK CHAMBON LA FORET : 036 AK WINGST : 028 ESTIMATED AP : 026 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE NONE END BT