BOM forecasts geomagnetic disturbance through 13 October
Australia’s space weather centre issued a warning on 11 October forecasting geomagnetic conditions linked to solar activity.
Event / data period:
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The Australian Bureau of Meteorology’s space weather centre issued geomagnetic disturbance warning 26/62 at 07:27 UTC on 11 October. It forecast planetary G1–G2 conditions for 11 October, G1 for 12 October and G1 for 13 October, with a chance of G2 on 13 October. The warning linked October 11 conditions to continuing effects of a coronal mass ejection that arrived on October 10, and October 13 conditions to high-speed solar wind from coronal holes.
The Bureau explains that strong geomagnetic storms can induce currents in long conductors such as electricity grids and pipelines. The warning did not report a grid failure: its G1–G2 levels are forecasts, and it did not state that a specific Australian asset had been affected.
Data
Geomagnetic disturbance warning 26/62
The Australian Space Weather Forecasting Centre warning and forecast issued on 11 October.
- · Occurred
Warning 26/62 issued
Issued at 07:27 UTC on 11 October; forecast G1–G2 that day, G1 on 12 and 13 October, and a chance of G2 on 13 October.
Methodology
Issue time and G levels come from the official warning. The explainer describes general grid risk; no specific failure is asserted.
Updated:
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