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Geomagnetic storm on 30 Sep 1937 (G3)
Max Kp7-G3
Ap36No. 18 in 1937
Consecutive G1+ days2
Ap rank1,945since 1932
Kp by 3-hour slot (UTC)
0o
0+
1-
2-
4o
5+
7-
6o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 27 Sep 1937 | 3+ | 8 | – |
| 28 Sep 1937 | 2+ | 5 | – |
| 29 Sep 1937 | 1+ | 2 | – |
| 30 Sep 1937 | 7- | 36 | G3 |
| 1 Oct 1937 | 5+ | 29 | G1 |
| 2 Oct 1937 | 3+ | 7 | – |
| 3 Oct 1937 | 5+ | 25 | G1 |
Highest-Ap days of 1937
128
74
72
71
67
65
61
56
53
50
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 36: No. 1,945 of 34,615 days since 1932 by Ap.