Aurora glows as the moon is about to set at Craigmyle, Alberta, on Sept. 17, 2024. Mike Drew/Postmedia file

Northern lights expected to be visible in Calgary over the weekend

G3 geomagnetic storm watch for Oct. 4 to 6 due to two coronal mass ejections anticipated to reach Earth

by · Calgary Herald

Northern lights are expected to be visible in Alberta over the weekend due to a strong geomagnetic storm.

The U.S. National Oceanic and Atmospheric Administration (NOAA) has issued a G3 geomagnetic storm watch for Oct. 4 to 6, due to two coronal mass ejections (CME) anticipated to reach Earth. According to NOAA, when these CMEs arrive, a geomagnetic storm can occur.