SIDC URSIGRAM 30123 SIDC SOLAR BULLETIN 23 Jan 2003, 1230UT SIDC FORECAST (valid from 1230UT, 23 Jan 2003 until 25 Jan 2003) SOLAR FLARES : Active (M-class flares expected, probability >= 50%) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 23 Jan 2003 10CM FLUX: 129 / AP: 023 PREDICTIONS FOR 24 Jan 2003 10CM FLUX: 132 / AP: 018 PREDICTIONS FOR 25 Jan 2003 10CM FLUX: 135 / AP: 016 COMMENT: The Earth is still inside the fast flow from a large coronal hole, so some weak geomagnetic disturbances are possible. SOLAR INDICES FOR 22 Jan 2003 SUNSPOT INDEX : 135 10CM SOLAR FLUX : 130 AK CHAMBON LA FORET : 034 AK WINGST : 021 ESTIMATED AP : 022 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE 23 0442 0448 0456 M1.0 END BT