G3 (Strong) Geomagnetic Storms Now Likely December 1st

"This faster-moving halo CME is progged to merge with 2 of the 3 upstream CMEs, all arriving at Earth on 01 Dec. G3 (Strong) conditions are now likely on 01 Dec".

Solar flares were released on November 27th (multiple mass coronal ejections), they are headed to Earth and is forecast to produce geomagnetic storms on December 1st.

Space Weather Prediction Center: "With 3 CMEs already inbound, the addition of a 4th, full halo CME has prompted SWPC forecasters to upgrade the G2 Watch on 01 Dec to a G3 Watch.

This faster-moving halo CME is progged to merge with 2 of the 3 upstream CMEs, all arriving at Earth on 01 Dec. G3 (Strong) conditions are now likely on 01 Dec."

Three-Day Forecast On Geomagnetic Activity, Charts: