Particle.news
Download on the App Store

NOAA Issues G3 Geomagnetic Storm Watch as Auroras Target Northern U.S.; UK Posts Red Alert

Kp could peak near 7 overnight, though outcomes depend on CME timing plus the IMF Bz orientation.

Overview

  • NOAA’s Space Weather Prediction Center is forecasting a strong G3 geomagnetic storm for Nov. 6–7, raising the chance of aurora across northern U.S. states and Canada.
  • Aurora viewlines from NOAA highlight potential visibility in roughly 21–22 U.S. states from the Pacific Northwest through the Upper Midwest and into the Northeast.
  • Aurorawatch UK issued a red alert as the Met Office signals likely visibility in Scotland on Nov. 7, with lower-confidence chances for Northern Ireland, northern England and parts of Wales.
  • Recent X- and M-class solar flares from active region AR4274 launched multiple CMEs, including one that forecasters say may deliver a glancing blow around Nov. 7.
  • Forecasters advise dark-sky viewing between about 10 p.m. and 2 a.m. and real-time checks of Kp and Bz, while noting possible impacts to power systems, satellites and space operations.