G4 Geomagnetic Storm

6 hours agoa strong geomagnetic storm could interact with earth's atmosphere within the next 24 hours, bringing the potential for northern lights much further south in the u.s. 4 hours agoa severe (g4) geomagnetic storm watch is in effect today as people prepare for pretty lights to dazzle the night sky across the northern u.s., offering stargazers a treat. 14 hours agoa massive cme from an x-class solar flare has hit earth, triggering severe geomagnetic storms and boosting chances of vivid auroras tonight.

2 hours agothe strong solar flare that triggered the radiation storm has also caused a severe geomagnetic storm, which strengthened to a g4 on monday afternoon and “came with a punch” at. 5 hours agoa geomagnetic storm watch remains in effect, with g3–g4 storming considered likely and severe g4 conditions forecast depending on the magnetic structure of the cme upon arrival. 4 hours agonoaa said rare s4 solar radiation and g4 geomagnetic storm conditions were recorded for the first time since 2003.

6 hours agothis is considered a severe solar storm watch, which means we are likely to see highly elevated geomagnetic activity on earth - and we have a good chance to see northern lights reach. 6 hours agoa g4 geomagnetic storm may degrade satellite navigation for some hours and disrupt low-frequency radio navigation. But given this is january and not the middle of spring planting, this storm.

Nov 12, 2025the national oceanic and atmospheric administration on tuesday issued a g4, or severe, geomagnetic storm watch in response to recent coronal mass ejections, or cmes, from the sun.