:Issued: 2010 Jun 08 1248 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 00608
SIDC SOLAR BULLETIN 08 Jun 2010, 1230UT
SIDC FORECAST (valid from 1230UT, 08 Jun 2010 until 10 Jun 2010)
SOLAR FLARES  : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 08 Jun 2010  10CM FLUX: 069 / AP: 005
PREDICTIONS FOR 09 Jun 2010  10CM FLUX: 071 / AP: 010
PREDICTIONS FOR 10 Jun 2010  10CM FLUX: 073 / AP: 005
COMMENT: Solar activity is still very low, but three new small sunspot
groups emerged on the solar disk over the last 24 hours. The most
developed one, Catania #81, has now grown to B-type. During this early
growth phase, one can expect a few C flares from any of those new active
regions. The solar wind is stable around 400km/s, but there is still a
risk of a fast stream reaching the Earth over the next 24 hours, due to a
geoeffective coronal hole on the Sun. The current quiet geomagnetic field
may thus become unsettled to active during a few hours, before returning
to quiet conditions on day 3 (June 10).

TODAY'S ESTIMATED ISN  : 009, BASED ON 13 STATIONS.

SOLAR INDICES FOR 7 Jun 2010
WOLF NUMBER CATANIA    : 025
10CM SOLAR FLUX        : 069
AK CHAMBON LA FORET    : 009
AK WINGST              : 006
ESTIMATED AP           : 006
ESTIMATED ISN          : 007, BASED ON 29 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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