:Issued: 2007 Apr 29 1227 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 70429
SIDC SOLAR BULLETIN 29 Apr 2007, 1159UT
SIDC FORECAST (valid from 1230UT, 29 Apr 2007 until 01 May 2007)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 29 Apr 2007  10CM FLUX: 087 / AP: 024
PREDICTIONS FOR 30 Apr 2007  10CM FLUX: 087 / AP: 021
PREDICTIONS FOR 01 May 2007  10CM FLUX: 087 / AP: 012
COMMENT: Solar activity is expected to be moderate with probable
C-class flaring activity from NOAA AR 0953. There remains a small chance
for an M-class flare from the same region.
Geomagnetic activity is expected to reach at least active condition
levels, with possible isolated periods of minor storm conditions. ACE
measurements show that the Earth is within the high-speed stream from a
coronal hole, with solar wind speeds of about 620 km/s, and fluctuating
Bz components. Minor storm conditions are observed from estimated Kp
indices on April 29th from 0UT onward. Note that no K indices
measurements are avaible from the Dourbes station since April 28th, 15UT.



TODAY'S ESTIMATED ISN  : 021, BASED ON 07 STATIONS.

SOLAR INDICES FOR 28 Apr 2007
WOLF NUMBER CATANIA    : 032
10CM SOLAR FLUX        : 085
AK CHAMBON LA FORET    : ///
AK WINGST              : 029
ESTIMATED AP           : 030
ESTIMATED ISN          : 016, BASED ON 14 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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