3.67Kp now
Kp index now
The Kp index is 3.67 right now: active. Kp rates the disturbance of Earth's magnetic field from 0 to 9 every three hours; the higher it climbs, the further from the poles the northern and southern lights reach. Below: the three-day forecast, the last two weeks and what each step means.
activeLevel
G0NOAA scale
Kp 3Kp forecast for the next three days
22 Oct, 13:39 UTCRight now
Kp forecast for the next three days
Kp forecast for the next three days
Kp in the last two weeks
Kp every three hours · UTC
56789
5 Oct6 Oct7 Oct8 Oct9 Oct10 Oct11 Oct12 Oct13 Oct14 Oct15 Oct16 Oct17 Oct18 Oct
What each Kp level means
Shares of days since 1932 whose highest three-hour Kp reached the step (GFZ Potsdam). Places: towns in this atlas that see the lights on the horizon at that Kp; magnetic latitude: how far from the magnetic pole the oval's edge comes.
| Kp | Level | NOAA scale | Days with at least this Kp | Magnetic latitude | Places that see it on the horizon | For example |
|---|---|---|---|---|---|---|
| 0 | quiet | – | 100% | – | – | |
| 1 | quiet | – | 99% · 363 a year | – | – | |
| 2 | quiet | – | 91% · 331 a year | – | – | |
| 3 | unsettled | – | 71% · 259 a year | – | – | |
| 4 | active | – | 43% · 158 a year | – | – | |
| 5 | minor storm | G1 | 21% · 78 a year | 51° | 280,376 | Moscow, Saint Petersburg, Toronto, Chicago |
| 6 | moderate storm | G2 | 8.6% · 31 a year | 49° | 393,821 | Moscow, Saint Petersburg, Toronto, Chicago |
| 7 | strong storm | G3 | 3.1% · 11 a year | 47° | 512,587 | Moscow, New York City, London, Saint Petersburg |
| 8 | severe storm | G4 | 1.1% · 4 a year | 45° | 632,065 | Moscow, New York City, London, Saint Petersburg |
| 9 | extreme storm | G5 | 0.3% · 1 a year | 43° | 743,498 | Moscow, New York City, London, Saint Petersburg |