The Kp-index as a global aurora indicator

The Kp-index is a global geomagnetic storm index with a scale of 0 to 9. Based on the Kp-index, you can immediately know if there is a chance to see aurora or not. On the world map below, the average equatorward boundary of the midnight aurora is shown based on the current predicted Kp-index. This gives us a good indication where we could see the aurora right now in areas where the current local time is close to midnight. The higher the Kp climbs, the closer the lines move towards the equator.

Keep in mind that this is not a precise boundary and the auroral oval could be slightly more northward or southward than indicated on this map. Use this map as a quick guide. If you are close to the position of the line on this map then you have a chance to see the aurora about 20º above the horizon.

KP index

Observed Kp: 3o
Predicted Kp: 1+ (+69m Kp: 2o)
1o -> 3+ Quiet magnetic field
4o -> 5- Active magnetic field
5o -> 8+ Storm
9o Extreme storm
KP index
Current data suggest that it is not possible to see aurora now at middle latitudes
The maximum X-ray flux of the past two hours is:
C1.57

Auroral activity

Live
chance
High latitude 51%
Middle latitude 3%
Low latitude 3%
Today
Minor Severe
High latitude 30% 30%
Middle latitude 5% 1%
Predicted Kp max 3

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Latest alerts

Strong M5.73 solar flare
Strong M3.78 solar flare from sunspot region 12209
Strong M3.3 solar flare

Space weather facts

Last X-flare:2014/11/07X1.6
Last M-flare:2014/11/16M5.7
Last geomagnetic storm:2014/11/11Kp5 (G1)

This day in history*

Solar flares
11998X2.2
21998M3.1
32013M1.1
42000M1.0
52013M1.0
ApG
1199759G3
2200322G1
3199919
4200217
5200615
*since 1994