SIDC URSIGRAM 50108 SIDC SOLAR BULLETIN 08 Jan 2005, 1155UT SIDC FORECAST (valid from 1230UT, 08 Jan 2005 until 10 Jan 2005) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Minor geomagnetic storm expected (A>=30 or K=5) SOLAR PROTONS : Quiet PREDICTIONS FOR 08 Jan 2005 10CM FLUX: 086 / AP: 038 PREDICTIONS FOR 09 Jan 2005 10CM FLUX: 087 / AP: 027 PREDICTIONS FOR 10 Jan 2005 10CM FLUX: 088 / AP: 008 COMMENT: NOAA AR 0718, Catania sunspot group 3, may produce a C-flare. The geomagnetic storm that occurred yesterday due to the passage of an ICME is now finished as the interplanetary magnetic field turned northwards. We still expect the arrival of a halo CME observed by SOHO/LASCO on January 5; it will probably arrive later today or tomorrow producing a moderate geomagnetic disturbance. SOLAR INDICES FOR 7 Jan 2005 SUNSPOT INDEX : 012 10CM SOLAR FLUX : 084 AK CHAMBON LA FORET : /// AK WINGST : /// ESTIMATED AP : 048 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA NOTE NONE END BT