Overview

• NOAA predicts a G1-class geomagnetic storm for June 4 with a Kp index of 5, suggesting brighter auroras deep into lower latitudes
• The auroral oval is expected to reach parts of Washington, Idaho, Montana, the Midwest and New England, as well as Ontario, Quebec and the Maritimes
• The solar maximum that peaked in 2024 is driving heightened geomagnetic activity that is likely to persist into early 2026
• Fainter displays are possible as far south as northern Iowa and southern Ontario, with the best chance between 10 p.m. and 2 a.m. under clear, dark skies
• Observers are encouraged to consult NOAA’s 30-minute real-time aurora map or mobile apps for live tracking and optimal viewing windows