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Geomagnetic storm on 25 Oct 2011 (G3)
Max Kp7+G3
Ap38No. 5 in 2011
Consecutive G1+ days2
Ap rank1,831since 1932
Kp by 3-hour slot (UTC)
7+
6-
5-
3o
3o
2o
1+
1-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 22 Oct 2011 | 1- | 2 | – |
| 23 Oct 2011 | 1o | 2 | – |
| 24 Oct 2011 | 7o | 26 | G3 |
| 25 Oct 2011 | 7+ | 38 | G3 |
| 26 Oct 2011 | 1+ | 4 | – |
| 27 Oct 2011 | 2o | 4 | – |
| 28 Oct 2011 | 0+ | 0 | – |
Highest-Ap days of 2011
45
42
40
38
38
37
34
32
31
30
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Max Kp 7+, Ap 38: No. 1,831 of 34,615 days since 1932 by Ap.