[ips-sf] IPS Summary Forecast for 20 June - issued 2337UT/19-Jun-2013

rwc rwc at ips.gov.au
Thu Jun 20 09:37:40 EST 2013

There were five C class flares during June 19, including a C8.4 flare
at 09:54 UT from an active region rotating into view around the south
east limb of the solar disk. Active Region 1775 produced 3 of the C
class flares and is rotating toward the geoeffective position. An M
class flare may occur during the next three days. A large coronal hole
located in the northern hemisphere is rotating across the solar
meridian. High speed solar wind streams emanating from this coronal
hole may arrive at Earth during the next 48 hours. An erupting solar
prominence produced a succession of coronal mass ejections from the
south west limb commencing at 01 UT on June 19. These CMEs are not
Earthward pointing. Geomagnetic conditions may become unsettled during
the next 48 hours. High frequency radio communication is expected to
remain near to or slightly above monthly predicted values due to
increasing solar EUV flux. A short wave radio fadeout is possible
during the next 3 days.

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