> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> PRELIMINARY DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
>
> 26 APRIL, 2005
>
> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>
> (Based in-part on SEC Data.)
> (The final report will be released tommorrow.)
>
>
> PRELIMINARY SOLAR & GEOPHYSICAL INDICES FOR 26 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: 90, 90, 90.
> Average 90-day Solar Flux: 90.
> Current Middle Latitude A-Index: 4
> Current Boulder K-Indices: 1101 212*
> Current Planetary K-Indices: 1011 222*
> Boulder A-Index 3-Day Forecast: 5, 5, 12.
> Planetary A-Index 3-Day Forecast: 8, 5, 12.
>
>
> SYNOPSIS OF TODAYS ACTIVITY
> ---------------------------
>
> Solar activity increased to low levels today. Region
> 756 (S06E55) appears to be a magnetically complex beta-delta sunspot
> group. There were several C-class flares produced from this region
> during the period, the largest was an impulsive C5 x-ray event that
> occurred at 26/0441Z. A disappearing filament was observed starting
> late yesterday and continued into the early part of the interval.
> This event resulted in a partial halo cme which was first observed
> in soho/lasco C2 imagery beginning at 24/2306Z. There is a chance
> this cme may become geoeffective and produce a weak glancing blow as
> it passes the earth. No new regions were numbered today.
>
> Solar activity forecast: solar activity is expected to be at
> low levels. There is a slight chance for an isolated M-class flare
> from region 756.
>
> The geomagnetic field was at quiet levels today.
>
> Geophysical activity forecast: the geomagnetic field is
> expected to be at predominantly quiet to unsettled levels. The
> partial halo cme seen today on the southwest limb may result in
> isolated periods of active conditions on 29 april.
>
> Event probabilities 27 apr-29 apr
>
> Class M 20/20/20
> Class X 01/01/01
> Proton 01/01/01
> PCAF green
>
> Geomagnetic activity probabilities 27 apr-29 apr
>
> A. Middle Latitudes
> Active 15/15/25
> Minor storm 01/01/10
> Major-severe storm 01/01/05
>
> B. High Latitudes
> Active 20/15/25
> Minor storm 05/01/10
> Major-severe storm 01/01/05
>
>
> ** End of Daily Report **
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