A significant solar event is poised to deliver a breathtaking natural light show for skywatchers across Australia. The Aurora Australis, or Southern Lights, is expected to be visible from several regions due to a severe geomagnetic storm triggered by activity on the sun.
Solar Fury Sparks Spectacular Display
The source of the impending spectacle is a series of powerful explosions on the sun's surface, known as coronal mass ejections (CMEs). These events blast billions of tonnes of solar plasma and magnetic fields into space. When this material interacts with Earth's own magnetic field, it can cause geomagnetic storms and energise particles in the upper atmosphere, resulting in the shimmering curtains of coloured light known as an aurora.
The Bureau of Meteorology's Australian Space Weather Forecasting Centre has been closely monitoring the situation. They have issued alerts indicating that the geomagnetic storm could reach severe (G4) levels on a five-point scale. This classification signifies a major disturbance with the potential to affect power grids, satellite operations, and high-frequency radio communications.
When and Where to See the Southern Lights
The most intense period of auroral activity is forecast for the night of Tuesday, 21 January 2026, and into the early hours of Wednesday. While the phenomenon is named for high-latitude southern regions, this powerful storm could push the visibility zone much further north than usual.
Typically, the Aurora Australis is best viewed from Tasmania, Victoria, and the southern coastline of Western Australia. However, during this severe event, there is a strong possibility it could be seen from dark sky locations in southern parts of New South Wales, South Australia, and even southern Queensland. For the best chance of witnessing the display, experts recommend:
- Finding a location with minimal light pollution, away from city lights.
- Looking towards the southern horizon.
- Allowing your eyes to adjust to the darkness for at least 15-20 minutes.
- Using a camera on a long exposure, as it can often capture the colours more vividly than the naked eye.
The US-based Space Weather Prediction Center (SWPC) and other international agencies are also tracking the solar storm. Their data confirms the arrival of multiple CMEs that have merged into a potent wave of solar energy directed at Earth.
Balancing Beauty with Potential Disruption
While the aurora promises a stunning visual treat, the underlying geomagnetic storm carries risks for modern infrastructure. Severe (G4) geomagnetic storms can induce unwanted electrical currents in long pipelines and power lines, potentially triggering voltage alarms and even causing transformer damage in extreme cases. Satellite operators may experience increased drag and orientation issues, and high-frequency radio communications used in aviation and maritime sectors can be disrupted.
Authorities have been notified, and infrastructure operators are taking precautionary measures to mitigate potential impacts. The Bureau of Meteorology continues to provide updates as the event unfolds, emphasising that while the technological effects are being managed, the public's primary experience will likely be one of awe at the natural spectacle overhead.
This event serves as a vivid reminder of our planet's intimate connection with the sun's dynamic activity. It highlights the growing importance of space weather forecasting in our technologically dependent world, even as it offers a rare opportunity for millions to witness one of nature's most magnificent displays.
