SIDC URSIGRAM 40131
SIDC SOLAR BULLETIN 31 Jan 2004, 1245UT
SIDC FORECAST (valid from 1230UT, 31 Jan 2004 until 02 Feb 2004)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Minor geomagnetic storm expected (A>=30 or K=5)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 31 Jan 2004  10CM FLUX: 097 / AP: 016
PREDICTIONS FOR 01 Feb 2004  10CM FLUX: 101 / AP: 031
PREDICTIONS FOR 02 Feb 2004  10CM FLUX: 102 / AP: 028
COMMENT: Solar activity is clearly on the increase, with most of it originating
from a new sunspot group (numbered Catania 51) at the east limb. This group has
already produced several C-flares. More C-class flares are expected.
The solar wind speed remains high (after a short small decrease it is currently
back up at 600km/s) due to the coronal hole influence. So far, geomagnetic
perturbations have remained rather limited, but minor storm conditions remain
likely for the next few days.

SOLAR INDICES FOR 30 Jan 2004
SUNSPOT INDEX       : 038
10CM SOLAR FLUX     : 093
AK CHAMBON LA FORET : 029
AK WINGST           : 025
ESTIMATED AP        : 024

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