Issued: 2004 Aug 22 1228 UTC
DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC (RWC-Belgium)
SIDC URSIGRAM 40822
SIDC SOLAR BULLETIN 22 Aug 2004, 1210 UTC
SIDC FORECAST (valid from 1230UT, 22 Aug 2004 until 24 Aug 2004)
SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%)
GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 22 Aug 2004 10CM FLUX: 119 / AP: 021
PREDICTIONS FOR 23 Aug 2004 10CM FLUX: 117 / AP: 015
PREDICTIONS FOR 24 Aug 2004 10CM FLUX: 114 / AP: 008
COMMENT: The Earth is currently situated in the relatively fast flow from a
coronal hole. The north - south component of the interplanetary magnetic field
is oscillating, but predominantly negative. This may raise the Kp index up to
4. Another small low-latitude coronal hole in the southern hemisphere is
situated close to the central meridian now. The fast flow from this coronal
hole may produce a weak geomagnetic disturbance on August 25.
SOLAR INDICES FOR 21 Aug 2004
SUNSPOT INDEX : 093
10CM SOLAR FLUX : 120
AK CHAMBON LA FORET : 028
AK WINGST : ///
ESTIMATED AP : 022
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE
21 1200 1220 1230 S34W56 M1.1 0696
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
KN4LF Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com
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