Tuesday, January 24, 2012

Auroral Event In Progress

Check out the photos of incredible aurora at high geomagnetic latitudes at this Daily Mail photo story.

The past two Kp indices have been 3, below the storm threshold.  As the news story notes, this was not a severe storm.  While energetic particles are traveling at a high velocity, most are missing the Earth.  HF propagation will not take a major hit from this one, although some signals from transauroral paths do seem much weaker or missing tonight.