:Issued: 2009 Aug 17 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 90817
SIDC SOLAR BULLETIN 17 Aug 2009, 1220UT
SIDC FORECAST (valid from 1230UT, 17 Aug 2009 until 19 Aug 2009)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 17 Aug 2009  10CM FLUX: 068 / AP: 001
PREDICTIONS FOR 18 Aug 2009  10CM FLUX: 068 / AP: 015
PREDICTIONS FOR 19 Aug 2009  10CM FLUX: 068 / AP: 005
COMMENT: Solar activity is quiet and is expected to remain so. The
Earth is currently inside the slow solar wind flow (290 km/s) with
average magnitude of the interplanetary magnetic field (4 nT). We expect
quiet geomagnetic conditions in the coming hours. The arrival of the
fast solar wind flow from a low-latitude coronal hole in the northern
hemisphere is expected on August 18. Disturbed geomagnetic conditions up
to the minor storm level are possible.

TODAY'S ESTIMATED ISN  : 000, BASED ON 17 STATIONS.

SOLAR INDICES FOR 16 Aug 2009
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 069
AK CHAMBON LA FORET    : ///
AK WINGST              : 003
ESTIMATED AP           : 001
ESTIMATED ISN          : 000, BASED ON 30 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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