:Issued: 2004 Jul 25 1256 UTC :Product: documentation at http://sidc.oma.be/products/meu #------------------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC (RWC-Belgium) # #------------------------------------------------------------------------------# SIDC URSIGRAM 40725 SIDC SOLAR BULLETIN 25 Jul 2004, 1245UT SIDC FORECAST (valid from 1230UT, 25 Jul 2004 until 27 Jul 2004) SOLAR FLARES : Active (M-class flares expected, probability >= 50%) GEOMAGNETISM : Major geomagnetic storm expected (A>=50 or K>=6) SOLAR PROTONS : Quiet PREDICTIONS FOR 25 Jul 2004 10CM FLUX: 146 / AP: 058 PREDICTIONS FOR 26 Jul 2004 10CM FLUX: 138 / AP: 048 PREDICTIONS FOR 27 Jul 2004 10CM FLUX: 130 / AP: 018 COMMENT: THe K -index from Boulder as well as from Izmiran has reached the severe storm level. It is currently still at 5 in Dourbes, but may also increase in the next few hours. SOLAR INDICES FOR 24 Jul 2004 SUNSPOT INDEX : 113 10CM SOLAR FLUX : 147 AK CHAMBON LA FORET : 049 AK WINGST : /// ESTIMATED AP : 033 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE 24 0601 0606 0610 N07W20 M1.0 1F 230 82 0652 24 1840 1850 1856 N05W19 M2.5 100 82 0652 25 0540 0551 0615 N10W31 M7.7 82 0652 END BT #------------------------------------------------------------------------------# # Solar Influences Data analysis Center - RWC Belgium # # Royal Observatory of Belgium # # Fax : 32 (0) 2 373 0 224 # # Tel.: 32 (0) 2 373 0 491 # # # # For more information, see http://sidc.oma.be. Please do not reply directly # # to this message, but send comments and suggestions to 'sidctech@oma.be'. # # If you are unable to use that address, use 'rvdlinden@spd.aas.org' instead. # #------------------------------------------------------------------------------#