Auroral Alert issued: Solar event should spur auroral activity April 12-13

April 12, 2013

solar flare on April 11, 2013, NASAA solar event on April 11, 2013 was facing Earth and should increase auroral activity for 24 to 48 hours after the arrival of the shock front, expected late on April 12 or early April 13. 



Watch the Geophysical Institute's short-term forecast at You can also visit



For more information, email Professor Emeritus Charles "Chuck" Deehr at



Happy aurora hunting! 


IMAGE CAPTION/CREDIT: The joint ESA/NASA Solar Heliospheric Observatory captured this series of images of a coronal mass ejection on the morning of April 11, 2013 over the course of 3:48 EDT to 4:36 EDT. Mars can be seen on the left. Image courtesy ESA&NASA/SOHO/GSFC.