SIDC URSIGRAM 50113 SIDC SOLAR BULLETIN 13 Jan 2005, 1244UT SIDC FORECAST (valid from 1230UT, 13 Jan 2005 until 15 Jan 2005) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 13 Jan 2005 10CM FLUX: 105 / AP: 012 PREDICTIONS FOR 14 Jan 2005 10CM FLUX: 105 / AP: 013 PREDICTIONS FOR 15 Jan 2005 10CM FLUX: 106 / AP: 012 COMMENT: Most turbulence caused by the high solar wind speed from the coronal hole which is now in the west, is over. We expect quiet conditions. The solar wind speed is still elevated and has the value of 800 km/s. Flaring activity has increased: C-flares are exspected with a small chance for an M-flare. SOLAR INDICES FOR 12 Jan 2005 SUNSPOT INDEX : 083 10CM SOLAR FLUX : 102 AK CHAMBON LA FORET : /// AK WINGST : /// ESTIMATED AP : 030 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA NOTE NONE END BT