A powerful X1.9-class solar flare erupted from a newly emerged sunspot (AR4299) on Sunday, November 30, prompting a geomagnetic storm watch.

The flare briefly disrupted radio communications in Australia and parts of Southeast Asia.

A coronal mass ejection (CME) accompanied the flare, which could affect power grids, navigation systems, and spacecraft, though major impacts on Earth are not expected.

The CME may cause minor technological disruptions and geomagnetic storms as early as December 3, with potential visibility of the Northern Lights in northern U.S. states, CBS News has reported.

Scientists expect elevated space weather activity through December 5 as the sunspot region rotates to face Earth.