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Geomagnetic storm on 5 Aug 2011 (G4)
Max Kp8-G4
Ap42No. 2 in 2011
Consecutive G1+ days2
Ap rank1,472since 1932
Kp by 3-hour slot (UTC)
3o
2o
0+
0+
0+
3o
7-
8-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Aug 2011 | 2o | 3 | – |
| 3 Aug 2011 | 1o | 3 | – |
| 4 Aug 2011 | 3o | 4 | – |
| 5 Aug 2011 | 8- | 42 | G4 |
| 6 Aug 2011 | 6+ | 31 | G2 |
| 7 Aug 2011 | 4- | 7 | – |
| 8 Aug 2011 | 2+ | 7 | – |
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 8-, Ap 42: No. 1,472 of 34,615 days since 1932 by Ap.