SIDC URSIGRAM 40218 SIDC SOLAR BULLETIN 18 Feb 2004, 1230UT SIDC FORECAST (valid from 1230UT, 18 Feb 2004 until 20 Feb 2004) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 18 Feb 2004 10CM FLUX: 100 / AP: 007 PREDICTIONS FOR 19 Feb 2004 10CM FLUX: 098 / AP: 006 PREDICTIONS FOR 20 Feb 2004 10CM FLUX: 097 / AP: 006 COMMENT: 'Ueber allen Gipfeln ist Ruh'. That's how Goether sums up the current status of space weather. Solar activity is very low. Catania sunspot group 57 (NOAA 0554) has further decayed to a single small sunspot. Neither this, nor the other two sunspot groups currently visible on the disk is capable of significant flaring activity. Geomagnetic conditions are quiet as well. The solar wind speed has decreased to 400 km/s and the interplanetary magnetic field is firmly northwards. No geomagnetic disturbances are expected. SOLAR INDICES FOR 17 Feb 2004 SUNSPOT INDEX : 024 10CM SOLAR FLUX : 102 AK CHAMBON LA FORET : 008 AK WINGST : 004 ESTIMATED AP : 003 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE NONE END BT