[ips-sf] IPS Summary Forecast for 19 December - issued 2341UT/18-Dec-2014

[rwc]

Solar activity was High yesterday with an M6.9-class flare occurring
from active region 2241 at 18/2158UT. This flare was associated with a
a type II sweep. A CME is expected to be hit the Earth late in the UT
day, 19 December or early in the UT day 20 December, though the
majority of the mass is expected to pass south of Earth. Expect
Moderate to High solar activity today. The solar wind speed is
expected to be light until expected arrival of the CME. Geomagnetic
conditions are at quiet levels, however should turn active on expected
arrival of CME. Note there is a possibility of aurora being observed
in southern latitudes such as Tasmania on 19-20 December. Short-wave
radio fadeouts likely. High-frequency radio communications normal at
this time.

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