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PRELIMINARY DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
12 MAY, 2008
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(Based in-part on SEC Data.)
(The final report will be released tommorrow.)
PRELIMINARY SOLAR & GEOPHYSICAL INDICES FOR 12 MAY, 2008
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DRAO 10.7 cm Solar Flux at 18Z, 20Z, 22Z: N/A, N/A, N/A sfu.
Predicted Solar Flux for Next 3 Days: 70, 70, 70.
Average 90-day Solar Flux: 71.
Current Middle Latitude A-Index: 4
Current Boulder K-Indices: 1111 222*
Current Planetary K-Indices: 1010 111*
Boulder A-Index 3-Day Forecast: 8, 5, 5.
Planetary A-Index 3-Day Forecast: 8, 5, 5.
SYNOPSIS OF TODAYS ACTIVITY
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Solar activity was very low. There have been several
low-level flares observed during the period. The most probable
source is an active region located just behind the east limb.
Solar activity forecast: solar activity is expected to be very
low. There is a slight chance for an isolated C-class event from
the new active region making its way onto the solar disk from behind
the east limb.
The geomagnetic field has been at quiet levels. The greater than 2
mev electron flux at geosynchronous orbit was at high levels.
Geophysical activity forecast: the geomagnetic field is
expected to be at quiet to unsettled conditions on day one (13 may)
of the period due to the influence of a recurrent coronal hole high
speed stream. Predominately quiet levels are expected to return for
days two and three (14-15 may).
Event probabilities 13 may-15 may
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
Geomagnetic activity probabilities 13 may-15 may
A. Middle Latitudes
Active 15/10/10
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 15/10/10
Minor storm 05/05/05
Major-severe storm 01/11/01
** End of Daily Report **