> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> PRELIMINARY DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
>
> 04 APRIL, 2005
>
> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> (Based in-part on SEC Data.)
> (The final report will be released tommorrow.)
>
>
> PRELIMINARY SOLAR & GEOPHYSICAL INDICES FOR 04 APRIL, 2005
> ----------------------------------------------------------
>
> DRAO 10.7 cm Solar Flux at 18Z, 20Z, 22Z: 87.5, 87.1, 86.7 sfu.
> Predicted Solar Flux for Next 3 Days: 90, 90, 90.
> Average 90-day Solar Flux: 96.
> Current Middle Latitude A-Index: 13
> Current Boulder K-Indices: 1232 344*
> Current Planetary K-Indices: 1222 244*
> Boulder A-Index 3-Day Forecast: 15, 10, 8.
> Planetary A-Index 3-Day Forecast: 20, 12, 8.
>
>
> SYNOPSIS OF TODAYS ACTIVITY
> ---------------------------
>
> Solar activity was very low. Region 747 (S06W32) has
> slightly increased in both area and spot count. No new regions were
> numbered today.
>
> Solar activity forecast: solar activity is expected to be very
> low to low.
>
> The geomagnetic field was quiet to active. Heightened activity
> was
> due to the onset of a coronal hole high speed stream. Solar wind
> speed at ace increased from approximately 350 km/s to 600 km/s
> during the reporting period.
>
> Geophysical activity forecast: the geomagnetic field is
> expected to be unsettled to active with minor storm periods possible
> on 05 april. On 06 and 07 april, quiet to unsettled conditions are
> expected.
>
> Event probabilities 05 apr-07 apr
>
> Class M 05/05/05
> Class X 01/01/01
> Proton 01/01/01
> PCAF green
>
> Geomagnetic activity probabilities 05 apr-07 apr
>
> A. Middle Latitudes
> Active 30/25/20
> Minor storm 15/10/10
> Major-severe storm 10/01/01
>
> B. High Latitudes
> Active 35/25/20
> Minor storm 15/15/10
> Major-severe storm 10/05/01
>
>
> ** 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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