:Issued: 2005 Sep 26 1233 UTC
:Product: documentation at http://sidc.oma.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 50926
SIDC SOLAR BULLETIN 26 Sep 2005, 1218UT
SIDC FORECAST (valid from 1230UT, 26 Sep 2005 until 28 Sep 2005)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 26 Sep 2005  10CM FLUX: 081 / AP: 011
PREDICTIONS FOR 27 Sep 2005  10CM FLUX: 080 / AP: 021
PREDICTIONS FOR 28 Sep 2005  10CM FLUX: 079 / AP: 016
COMMENT: The solar activity is expected to remain low, with only
possible isolated C flares, in part from a newly emerging sunspot group
Catania #45, near disc center. The X-ray background is now low and
almost flat at the A3 level. The solar wind speed remains around
380km/s, but it may increase over the next 2 days, due to limited
extensions of the polar coronal holes. The geomagnetic field was
temporarily active early today Sept.26, in response to minor Southward
excursions of the IMF. We expect it to remain mostly unsettled, with
possible temporary active to minor storm conditions on day 2 and 3 of the
period, due to the coronal hole influence.

SOLAR INDICES FOR 25 Sep 2005
SUNSPOT INDEX       : 028
10CM SOLAR FLUX     : 081
AK CHAMBON LA FORET : 008
AK WINGST           : 006
ESTIMATED AP        : 004

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