> :Issued: 2005 Apr 18 1244 UTC
> :Product: documentation at http://sidc.oma.be/products/meu
> #--------------------------------------------------------------------#
> # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC #
> # (RWC Belgium) #
> #--------------------------------------------------------------------#
> SIDC URSIGRAM 50418
> SIDC SOLAR BULLETIN 18 Apr 2005, 1157UT
> SIDC FORECAST (valid from 1230UT, 18 Apr 2005 until 20 Apr 2005)
> SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%)
> GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
> SOLAR PROTONS : Quiet
> PREDICTIONS FOR 18 Apr 2005 10CM FLUX: 084 / AP: 012
> PREDICTIONS FOR 19 Apr 2005 10CM FLUX: 085 / AP: 019
> PREDICTIONS FOR 20 Apr 2005 10CM FLUX: 086 / AP: 007
> COMMENT: Catania sunspot group 55 (NOAA 0755) was responsible for two
> more C-flares yesterday and remains the most active sunspot group,
> despite its small extent. Its magnetic structure is probably more
> complex than currently apparent from MDI images. Although its activity
> has decreased, we still expect C-class flares.
> Several eastwards CME were associated with the flares from Catania 55,
> but these will not reach earth. A small equatorial coronal hole is
> currently visible west of the central solar meridian. The solar wind
> originating from this coronal hole is expected to reach earth tomorrow
> and may lead to active geomagnetic conditions.
>
> SOLAR INDICES FOR 17 Apr 2005
> SUNSPOT INDEX : 042
> 10CM SOLAR FLUX : 084
> AK CHAMBON LA FORET : 008
> AK WINGST : 004
> ESTIMATED AP : 004
>
> NOTICEABLE EVENTS SUMMARY
> DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania
> NOAA NOTE
> NONE
> END
> BT
>
> #--------------------------------------------------------------------#
> # Solar Influences Data analysis Center - RWC Belgium #
> # Royal Observatory of Belgium #
> # Fax : 32 (0) 2 373 0 224 #
> # Tel.: 32 (0) 2 373 0 491 #
> # #
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> #--------------------------------------------------------------------#
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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