Kp 2013-11-11

Image: Estimated Planetary K Index (3-Hour Data), by NOAA/SWPC Boulder, Colorado … DESCRIPTION: 3-hour graph bars of Kp Index 9 November 2013 – 11 November 2013. There are 22 3-hour bars; 7 are yellow, indicating Kp index of 4 (borderline geostorm) and 15 are green, indicating Kp index less than 4 (non-geostorm conditions).