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[Propagation] Fw: SIDC Ursigram

To: "a Propagation Reflector" <propagation@contesting.com>
Subject: [Propagation] Fw: SIDC Ursigram
From: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>
Date: Mon, 18 Apr 2005 10:44:58 -0400
List-post: <mailto:propagation@contesting.com>
> :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                                           #
> #                                                                    #
> # For more information, see http://sidc.oma.be.  Please do not reply #
> # directly to this message, but send comments and suggestions to     #
> # 'sidctech@oma.be'. If you are unable to use that address, use      #
> # 'rvdlinden@spd.aas.org' instead.                                   #
> #--------------------------------------------------------------------#

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

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