Credit: Juliancolton
Despite its relatively southerly latitude, the Hudson Valley occasionally sees hints of the northern lights (aurora borealis) after particularly intense solar storms. Generally, a K-index rating of 6 or greater is required before northern lights are visible from the Hudson Valley. In this unedited long exposure image from near Millbrook on the night of May 30, 2013, the northern horizon is flooded with diffuse green and purple hues.