Overview

• Britain’s Met Office says CMEs launched Oct. 3–4 may begin affecting Earth from Oct. 6, raising the likelihood of aurora over Scotland with possible sightings farther south if skies clear.
• NOAA and Spaceweather.com forecast the CMEs’ main arrival for late Oct. 7 into early Oct. 8 with a chance of G1 geomagnetic storming that could bring low-horizon auroras to northern U.S. states.
• Regional UK alerts on Oct. 6 highlighted potential visibility in London, Berkshire, Buckinghamshire and Essex, with early evening breaks in cloud expected to diminish overnight.
• Experts recommend dark, north-facing locations during roughly 9 p.m.–2 a.m., with high-latitude UK hotspots such as Shetland, Orkney and the Outer Hebrides offering the best odds.
• Forecasters urge monitoring real-time tools including AuroraWatch UK, NOAA’s 30‑minute forecast and dedicated apps, noting outcomes depend on cloud cover and the IMF Bz orientation.