> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> PRELIMINARY DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
>
> 05 APRIL, 2005
>
> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> (Based in-part on SEC Data.)
> (The final report will be released tommorrow.)
>
>
> PRELIMINARY SOLAR & GEOPHYSICAL INDICES FOR 05 APRIL, 2005
> ----------------------------------------------------------
>
> DRAO 10.7 cm Solar Flux at 18Z, 20Z, 22Z: 134.5, 82.1, 81.7 sfu.
> Predicted Solar Flux for Next 3 Days: 90, 90, 90.
> Average 90-day Solar Flux: 96.
> Current Middle Latitude A-Index: 36
> Current Boulder K-Indices: 6653 333*
> Current Planetary K-Indices: 7753 333*
> Boulder A-Index 3-Day Forecast: 12, 8, 5.
> Planetary A-Index 3-Day Forecast: 15, 10, 5.
>
>
> SYNOPSIS OF TODAYS ACTIVITY
> ---------------------------
>
> Solar activity was low. A C1.1/Sf flare occurred from
> region 747 (S05W47) at 05/2007 utc. New region 750 (S08E84) was
> numbered today.
>
> Solar activity forecast: solar activity is expected to be very
> low to low.
>
> The geomagnetic field was at unsettled to severe storm levels.
> Major
> storm periods at middle latitudes with severe storm periods at
> higher latitudes were observed between 05/0000 utc and 05/0600 utc.
> At approximately 0200 utc on 05 april, solar wind speed at ace
> increased from 560 km/s to 650 km/s while temperature, density, and
> the imf decreased. In addition, bz remained southward for several
> hours following this sudden change. The greater than 2 mev electron
> flux at geosynchronous orbit reached high levels today.
>
> Geophysical activity forecast: the geomagnetic field is
> expected to be unsettled to active with isolated minor storm periods
> possible on 06 april. On 07 and 08 april, quiet to unsettled
> conditions are expected as the coronal hole high speed stream moves
> out of geoeffective position.
>
> Event probabilities 06 apr-08 apr
>
> Class M 05/05/05
> Class X 01/01/01
> Proton 01/01/01
> PCAF green
>
> Geomagnetic activity probabilities 06 apr-08 apr
>
> A. Middle Latitudes
> Active 25/20/15
> Minor storm 15/10/05
> Major-severe storm 05/01/01
>
> B. High Latitudes
> Active 30/25/15
> Minor storm 15/10/05
> Major-severe storm 10/01/01
>
>
> ** 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:
http://lists.contesting.com/mailman/listinfo/propagation
HC-DX Propagation Channel:
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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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