:Issued: 2007 Feb 28 1231 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 70228
SIDC SOLAR BULLETIN 28 Feb 2007, 1214UT
SIDC FORECAST (valid from 1230UT, 28 Feb 2007 until 02 Mar 2007)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 28 Feb 2007  10CM FLUX: 075 / AP: 024
PREDICTIONS FOR 01 Mar 2007  10CM FLUX: 075 / AP: 016
PREDICTIONS FOR 02 Mar 2007  10CM FLUX: 075 / AP: 008
COMMENT: Over the last 12 hours, the solar wind speed rose to 650km/s,
while the Bz IMF component fluctuated but remained centered on 0. This
induced active geomagnetic conditions, but with a delay of about 1.5 day
compared to previous solar rotations. As the source coronal hole did not
change in E-W extent, we expect that the solar wind speed will already
start to decline within the next 24 hours. The geomagnetic field will
remain unsettled to active in the meantime, with possible minor storms
mainly at high latitudes. Thereafter, it will return to quiet levels as
the fast stream decays. The solar activity will remain very low, as it
was already for a several days.

TODAY'S ESTIMATED ISN  : 011, BASED ON 08 STATIONS.

SOLAR INDICES FOR 27 Feb 2007
WOLF NUMBER CATANIA    : 028
10CM SOLAR FLUX        : 075
AK CHAMBON LA FORET    : 023
AK WINGST              : ///
ESTIMATED AP           : 015
ESTIMATED ISN          : 016, BASED ON 09 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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