> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> PRELIMINARY DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
>
> 12 APRIL, 2005
>
> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> (Based in-part on SEC Data.)
> (The final report will be released tommorrow.)
>
>
> PRELIMINARY SOLAR & GEOPHYSICAL INDICES FOR 12 APRIL, 2005
> ----------------------------------------------------------
>
> DRAO 10.7 cm Solar Flux at 18Z, 20Z, 22Z: N/A, N/A, N/A sfu.
> Predicted Solar Flux for Next 3 Days: 85, 85, 85.
> Average 90-day Solar Flux: 96.
> Current Middle Latitude A-Index: 29
> Current Boulder K-Indices: 5543 524*
> Current Planetary K-Indices: 6534 434*
> Boulder A-Index 3-Day Forecast: 20, 12, 7.
> Planetary A-Index 3-Day Forecast: 25, 18, 10.
>
>
> SYNOPSIS OF TODAYS ACTIVITY
> ---------------------------
>
> Solar activity was low due to a C2/sf flare at 1721 utc
> from newly assigned region 752 (N00E76). There were additional
> B-class events during the past 24 hours and all of these were from
> 752 as well. At this time region 752 is a small, d-type sunspot
> region.
>
> Solar activity forecast: solar activity is expected to be low
> for the next three days (13-15 april).
>
> The geomagnetic field ranged from quiet to major storm levels.
> Conditions were at mostly active to minor storm levels during the
> past 24 hours with a major storm interval at high latitudes from
> 0000-0300 utc. The enhanced activity is being driven by a favorably
> positioned coronal hole.
>
> Geophysical activity forecast: the geomagnetic field is
> expected to be mostly active for the next 36 hours (13 april to 14
> april 1200 utc) due to persistent coronal hole effects. Conditions
> should begin to decline partway through the 14th and should be quiet
> to unsettled by the 3rd day (15th).
>
> Event probabilities 13 apr-15 apr
>
> Class M 05/05/05
> Class X 01/01/01
> Proton 01/01/01
> PCAF green
>
> Geomagnetic activity probabilities 13 apr-15 apr
>
> A. Middle Latitudes
> Active 40/35/20
> Minor storm 25/20/10
> Major-severe storm 10/10/05
>
> B. High Latitudes
> Active 40/35/30
> Minor storm 35/25/15
> Major-severe storm 15/15/10
>
>
> ** End of Daily Report **
> _______________________________________________
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:
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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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