Mid-Latitude Aurora Watch as Sun Unleashes Cannibal CMEs
NOAA warns of a strong G3 geomagnetic storm on June 4–5 as multiple CMEs from sunspot region 4455 head toward Earth, potentially merging in a cannibal CME; this could spark auroras visible as far south as Illinois and Oregon after dark, with peak activity in the evenings and overnight hours, though timing and intensity remain uncertain.