[Ips-aurora-alert] Aurora Watch

[rwc at ips.gov.au]

SUBJ: IPS AURORA WATCH
ISSUED AT 0015 UT ON 20 Sep 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

A CME observed during 18 September in association with the long
duration C2.6 flare from region 2415 is primarily directed southward
out of the ecliptic plane and is expected to have only a glancing
impact around 16UT on 20 September (2am 21 September AEST). Isolated
active and minor storm periods at high latitudes are possible with the
anticipated CME impact possibly resulting in favourable space weather
for aurora sightings at southern Australian regions (eg Tasmania).
Conditions should be mostly quiet to unsettled prior to the CME
arrival. ACE EPAM data indicates an energetic ion enhancement event
beginning 19/2045UT, which may be a precursor to the arrival of the
anticipated CME. Aurora alerts will follow should favourable space
weather activity eventuate.

Australian Space Forecast Centre
IPS Radio and Space Services
Bureau of Meteorology

P: +61 2 9213 8010
E: asfc at ips.gov.au