SIDC URSIGRAM 40418
SIDC SOLAR BULLETIN 18 Apr 2004, 1230UT
SIDC FORECAST (valid from 1230UT, 18 Apr 2004 until 20 Apr 2004)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 18 Apr 2004  10CM FLUX: 099 / AP: 014
PREDICTIONS FOR 19 Apr 2004  10CM FLUX: 100 / AP: 008
PREDICTIONS FOR 20 Apr 2004  10CM FLUX: 101 / AP: 007
COMMENT: Solar activity was on background level (< B2) past UT day. The C1.2
flare of yesterday probably came from the new sunspot group catania 08. For the
next UT day we expect quiet conditions with a possibility for C or small M
flares. We expect quiet geomagnetic conditions for the next days.



SOLAR INDICES FOR 17 Apr 2004
SUNSPOT INDEX       : 083
10CM SOLAR FLUX     : 098
AK CHAMBON LA FORET : 011
AK WINGST           : ///
ESTIMATED AP        : 009

NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX  END  LOC   XRAY OP 10CM     TYPE          Catania NOAA NOTE
NONE
END
BT