:Issued: 2005 Feb 22 1242 UTC
:Product: documentation at http://sidc.oma.be/products/meu
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC #
# (RWC Belgium) #
#--------------------------------------------------------------------#
SIDC URSIGRAM 50222
SIDC SOLAR BULLETIN 22 Feb 2005, 1224UT
SIDC FORECAST (valid from 1230UT, 22 Feb 2005 until 24 Feb 2005)
SOLAR FLARES : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 22 Feb 2005 10CM FLUX: 095 / AP: 007
PREDICTIONS FOR 23 Feb 2005 10CM FLUX: 090 / AP: 012
PREDICTIONS FOR 24 Feb 2005 10CM FLUX: 085 / AP: 019
COMMENT: The solar activity is very low and is expected to remain so,
with only a possible C flare from the two active regions that are now
approaching the West limb.
The solar wind speed declined further to 380km/s, with a weakly
positive Bz. As a result, the geomagnetic field was mostly quiet over
the last 24h. It should remain quiet for one more day. Then, late on
Feb. 23 or on Feb. 24, it is expected to become unsettled to active, due
to a high speed solar wind stream from a small coronal hole, with a
possible brief minor storm interval at high latitude. This moderately
disturbed period will probably last only for one or two days.
SOLAR INDICES FOR 21 Feb 2005
SUNSPOT INDEX : 038
10CM SOLAR FLUX : 095
AK CHAMBON LA FORET : 013
AK WINGST : ///
ESTIMATED AP : 008
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA
NOTE
NONE
73 & GUD DX,
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
Contesting Propagation eReflector:
http://lists.contesting.com/mailman/listinfo/propagation
HC-DX Propagation Channel:
http://www.hard-core-dx.com/index.php?topic=Propagation
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Daily LF/MF/HF Radio Propagation Outlook:
http://www.kn4lf.com/kn4lf6.htm
KN4LF HF/MF 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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