Auroras may be visible from Alaska to Wyoming tonight as Earth braces for impact from a speedy coronal mass ejection.
Geomagnetic activity is forecast to ramp up today due to the anticipated arrival of a CME that left the sun during an X.
According to NOAA's latest forecast, activity is expected to peak at moderate (G2) storm levels tonight and gradually ease to minor (G1) levels by April 1. Geomagnetic activity is ranked on a scale from G1 to G5 depending on how strong the disturbance to Earth's magnetic field is.
