Northern lights tonight in Pennsylvania

Pennsylvania sits at about 51° magnetic latitude, so the aurora reaches it from roughly Kp 7.7 — rare: G4 storms, once or twice a year at solar maximum. The card below reads NOAA's oval, tonight's dark hours, the cloud and the Moon for Cherry Springs State Park right now.

Pennsylvania has the best-known dark sky in the east and a magnetic latitude of 51–52° that needs a G3 to use it. Cherry Springs is the Gold-tier park astronomers drive to, with a 360° horizon from its field; on a Kp 7 night the oval's edge is barely 150 km north and the arc stands high over the state forest. Presque Isle reaches into Lake Erie and gives the water horizon Cherry Springs lacks, with Erie's lights behind you. Ricketts Glen is the eastern option two hours from Philadelphia. The 2024 G5 storm was photographed from Pittsburgh's suburbs; on ordinary G1–G2 nights the state sees nothing at all.