:Issued: 2004 Nov 19 1247 UTC
:Product: documentation at http://sidc.oma.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 41119
SIDC SOLAR BULLETIN 19 Nov 2004, 1229UT
SIDC FORECAST (valid from 1230UT, 19 Nov 2004 until 21 Nov 2004)
SOLAR FLARES : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 19 Nov 2004 10CM FLUX: 104 / AP: 012
PREDICTIONS FOR 20 Nov 2004 10CM FLUX: 106 / AP: 018
PREDICTIONS FOR 21 Nov 2004 10CM FLUX: 107 / AP: 010
COMMENT: Catania sunspot group 65 (NOAA 0700), although already behind the west
limb, produced a final sequence of 6 short C-class flare in the past 24 hours.
The last and biggest one was a C4.9 at 05:12UT today. By now, the region is well
behind the solar disk. Other sunspot groups are expected to remain quiet. There
is a small chance for a C-flare from Catania sunspot group 69 (NOAA 0702).
Geomagnetic conditions are still quiet, but are expected to become active later
today due to the northern hemisphere coronal hole.
SOLAR INDICES FOR 18 Nov 2004
SUNSPOT INDEX : 065
10CM SOLAR FLUX : 104
AK CHAMBON LA FORET : 004
AK WINGST : ///
ESTIMATED AP : 003
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA NOTE
NONE
73,
Thomas F. Giella, KN4LF
Retired Space & Atmospheric Weather Forecaster
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 33.6397 N 82 09 52.4052 W
kn4lf@arrl.net
Propagation eGroup: http://lists.contesting.com/mailman/listinfo/propagation
PropNET Beacon Program: http://www.propnet.org
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF HF/MF Frequency Radio Propagation Theory Notes:
http://www.kn4lf.com/kn4lf8.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com/index.htm
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