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Geomagnetic storm on 17 Sep 2024 (G3)
Max Kp7+G3
Ap71No. 7 in 2024
Consecutive G1+ days1
Ap rank408since 1932
Kp by 3-hour slot (UTC)
7+
7o
5+
6+
5+
4+
3+
4o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 14 Sep 2024 | 4+ | 18 | – |
| 15 Sep 2024 | 4o | 17 | – |
| 16 Sep 2024 | 4o | 19 | – |
| 17 Sep 2024 | 7+ | 71 | G3 |
| 18 Sep 2024 | 4- | 11 | – |
| 19 Sep 2024 | 4+ | 18 | – |
| 20 Sep 2024 | 3+ | 5 | – |
Highest-Ap days of 2024
271
127
116
105
97
71
71
68
60
54
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 71: No. 408 of 34,615 days since 1932 by Ap.