11/11/2025
There has been increased solar activity over the last few days, with two Coronal Mass Ejections (CMEs) emitted that are being directed towards Earth.
In this picture, you can see one of the solar flares that occurred yesterday.
What is a Coronal Mass Ejection (CME)?
CMEs are large and sudden clouds of high energy plasma that are expelled from the Sun, often associated with a solar flare, that overcome the pull of the Sun's gravitational field and interact with the Earth's magnetic field.
These particles can collide with the gases in our atmosphere to bring a show of lights in our skies at night – the aurora.
G4 geomagnetic storm conditions are forecast on Wednesday, with two CMEs forecast to reach Earth within close proximity.
If forecast conditions eventuate, aurora sightings may be possible at unusually low latitudes, including dark sky locations near Sydney or Perth.
To view the auroras, you ideally need a dark night with little cloud cover and an unobstructed view to our south.
For the latest space weather information and forecasts visit www.sws.bom.gov.au