[Ips-aurora-alert] Aurora Watch [SEC=UNCLASSIFIED]

[rwc at ips.gov.au]

SUBJ: SWS AURORA WATCH
ISSUED AT 0538 UT ON 22 Feb 2021 by Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

A Coronal Mass Ejection (CME) was observed starting at 1130 UTC
on 20 February. This CME was triggered by a long disappearing
filament from the south-east solar quadrant with extension towards
the solar centre. Our model run indicates that the effect of
this CME will be felt at the Earth between 00 - 12 UT on UT day
23 February. The impact of the CME can range from a glancing
blow to a large proportion of the CME hitting the earth. Expected
geomagnetic disturbances are likely to be active with a chance
of G1 storming. Aurora may be visible from Tasmania and Southern parts
of Victoria. Aurora alerts will follow if significant geomagnetic
activity actually occurs.


Australian Space Forecast Centre
Space Weather Services
Bureau of Meteorology

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