Kp 3 is a step up from Kp 2 and below Kp 4.
What Kp 3 means tonight
Kp 3 is a significant threshold - it brings aurora within reach of northern Scotland, the Northern Isles, and the more southerly parts of Scandinavia including Bergen. A Kp 3 event on a clear night in Shetland or Orkney produces visible aurora. This is one of the most commonly reached thresholds during the current solar maximum.










