:Issued: 2005 Dec 25 1239 UTC
:Product: documentation at http://www.sidc.be/products/meu
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# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
# (RWC Belgium)                                                      #
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SIDC URSIGRAM 51225
SIDC SOLAR BULLETIN 25 Dec 2005, 1224UT
SIDC FORECAST (valid from 1230UT, 25 Dec 2005 until 27 Dec 2005)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Minor geomagnetic storm expected (A>=30 or K=5)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 25 Dec 2005  10CM FLUX: 095 / AP: 007
PREDICTIONS FOR 26 Dec 2005  10CM FLUX: 098 / AP: 018
PREDICTIONS FOR 27 Dec 2005  10CM FLUX: 101 / AP: 020
COMMENT: A C1.2 flare peaking at 10:05 UT have been observed at S07E42
(near the NOAA AR 0840, Catania number 87). More C-flares are thus
expected. The Western edge of the equatorial coronal hole reached the
central meridian. We expect the fast flow from this coronal hole to
arrive late on December 26 - early on December 27 as during the previous
rotation the solar wind speed was up to 700 km/s. Geomagnetic
disturbance up to the minor storm level is expected. At the time of
writing the NOAA SEC Web server is not responding. The real-time ACE
data is thus unavailable. The forecast of the geomagnetic conditions is
therefore approximate.

TODAY'S ESTIMATED ISN  : 048, BASED ON 01 STATION.

SOLAR INDICES FOR 24 Dec 2005
WOLF NUMBER CATANIA    : 088
10CM SOLAR FLUX        : 092
AK CHAMBON LA FORET    : 008
AK WINGST              : ///
ESTIMATED AP           : 005
ESTIMATED ISN          : 045, BASED ON 04 STATIONS.

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