Aurora & Space WeatherHome › Geomagnetic history › 1937
Geomagnetic storm on 27 Apr 1937 (G3)
Max Kp7oG3
Ap61No. 7 in 1937
Consecutive G1+ days5
Ap rank568since 1932
Kp by 3-hour slot (UTC)
7o
6o
4o
2+
2o
2-
6+
7o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 24 Apr 1937 | 8o | 45 | G4 |
| 25 Apr 1937 | 7+ | 72 | G3 |
| 26 Apr 1937 | 8+ | 67 | G4 |
| 27 Apr 1937 | 7o | 61 | G3 |
| 28 Apr 1937 | 8o | 128 | G4 |
| 29 Apr 1937 | 4o | 19 | – |
| 30 Apr 1937 | 4o | 21 | – |
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 7o, Ap 61: No. 568 of 34,615 days since 1932 by Ap.