Oh man, remember that aurora watch I told you about? Sunspot AR2297 hurled solar plasma in our direction on March 11, 2015 at speeds of 1,400 KM/second – 3.1 million MPH in case you aren’t paying attention. A powerful X2 flare (with a blast zone bigger than Earth) ionized upper layers of our atmosphere causing HF radio blackouts and the promise of kicken’ northern hemisphere Auroras.We won’t know until March 13 or 14 if the blast is truly Earth directed or just a glancing blow. Some sites credit it as the first “Earth directed” blast of 2015.
Either way, our planet won’t escape repercussions. In the past 5 days, AR2297 has taunted us with 7 “moderate” intentions. Do yourself a favor northern hemisphere residents – find a dark sky and welcome Aurora.
Extreme ultraviolet radiation from the explosion ionized the upper layers of Earth’s atmosphere, causing HF radio fade-outs and other propagation effects on the dayside of our planet. In the red zone of this map, ham radio operators and mariners may have noticed brief but complete blackout conditions at frequencies below 10 MHz.