Issued: 2004 Sep 11 1307 UTC
DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC (RWC-Belgium)
SIDC URSIGRAM 40911
SIDC SOLAR BULLETIN 11 Sep 2004, 1114 UTC
SIDC FORECAST (valid from 1230 UTC, 11 Sep 2004 until 13 Sep 2004)
SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 11 Sep 2004 10CM FLUX: 130 / AP: 008
PREDICTIONS FOR 12 Sep 2004 10CM FLUX: 130 / AP: 006
PREDICTIONS FOR 13 Sep 2004 10CM FLUX: 125 / AP: 006
COMMENT: Sunspot group 12 (NOAA 0672) was responsible for the C-flaring
activity yesterday September 10. The former active region 09 (0670) has
disappeared, sunspot group 10 (former NOAA 0669) is also clearly diminishing,
this is also for group 06 (NOAA 0667). We expect that group 12 will continue to
produce C-flares, with a small chance for an M-flare. Group 11 which
participated also in producing C-flares, turns over the west limb. Earth is
still
enjoying a mild geomagnetic climate with k_p indices of 1 and 2.
SOLAR INDICES FOR 10 Sep 2004
SUNSPOT INDEX : 079
10CM SOLAR FLUX : 130
AK CHAMBON LA FORET : 005
AK WINGST : ///
ESTIMATED AP : 003
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE
NONE
73,
Thomas F. Giella, KN4LF
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 31 44N 82 09 51 98W
kn4lf@arrl.net
Propagation eGroup: http://lists.contesting.com/mailman/listinfo/propagation
KN4LF Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com
Plant City, FL Daily Climatological Weather Observations:
http://www.kn4lf.com/kn4lf22.htm
Plant City, FL APRS/CWOP Weather Station #CW2111:
http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KFLPLANT4
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