[ips-sf] IPS Summary Forecast for 23 October - issued 2343UT/22-Oct-2012

[rwc]

There are currently numerous active sun spot regions on the visible
Sun. The high levels of ionising EUV flux produced by these regions is
resulting in a much denser than usual ionosphere. This is providing
good support for HF radio propagation with a significant increase in
the maximum useable frequency. An X-ray flare of M class magnitude
occurred at around 5am AEST on the 23rd of October. This did not
produce a coronal mass ejection (CME) however the flaring region on
the east limb of the Sun retains the potential for further flares and
will rotate into a more central position on the Sun over the next few
days. Isolated M class flares may occur over the next few days
potentially causing temporary disruption to HF communications.

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