SIDC URSIGRAM 30926 SIDC SOLAR BULLETIN 26 Sep 2003, 1230UT SIDC FORECAST (valid from 1230UT, 26 Sep 2003 until 28 Sep 2003) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 26 Sep 2003 10CM FLUX: 131 / AP: 018 PREDICTIONS FOR 27 Sep 2003 10CM FLUX: 130 / AP: 016 PREDICTIONS FOR 28 Sep 2003 10CM FLUX: 127 / AP: 013 COMMENT: SOLAR INDICES FOR 25 Sep 2003 SUNSPOT INDEX : 172 10CM SOLAR FLUX : 133 AK CHAMBON LA FORET : 043 AK WINGST : 027 ESTIMATED AP : 031 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE NONE END BT