Issued: 2004 Aug 18 1228 UTC
DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC (RWC-Belgium)
SIDC URSIGRAM 40818
SIDC SOLAR BULLETIN 18 Aug 2004, 1220 UTC
SIDC FORECAST (valid from 1230UT, 18 Aug 2004 until 20 Aug 2004)
SOLAR FLARES : Active (M-class flares expected, probability >= 50%)
GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Warning condition
PREDICTIONS FOR 18 Aug 2004 10CM FLUX: 131 / AP: 011
PREDICTIONS FOR 19 Aug 2004 10CM FLUX: 127 / AP: 018
PREDICTIONS FOR 20 Aug 2004 10CM FLUX: 123 / AP: 010
COMMENT: The fast flow from the low-latitude coronal hole may arrive to the
Earth on August 19. It will probably produce only a weak geomagnetic
disturbance.
SOLAR INDICES FOR 17 Aug 2004
SUNSPOT INDEX : 114
10CM SOLAR FLUX : 135
AK CHAMBON LA FORET : 019
AK WINGST : ///
ESTIMATED AP : 012
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE
17 1926 1937 1948 S15W90 M2.4 CTM/1 90 0656 GOES-12/SXI derived location
17 2112 2121 2139 S15W90 M1.8 90 0656 GOES-12/SXI derived location
17 2212 2228 2237 S15W90 M1.3 90 0656 GOES-12/SXI derived location
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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