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Geomagnetic storm on 15 May 1953 (G4)
Max Kp8-G4
Ap55No. 9 in 1953
Consecutive G1+ days3
Ap rank724since 1932
Kp by 3-hour slot (UTC)
1o
3o
3-
2+
5+
5+
8-
7-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 May 1953 | 2o | 5 | – |
| 13 May 1953 | 1+ | 3 | – |
| 14 May 1953 | 2o | 4 | – |
| 15 May 1953 | 8- | 55 | G4 |
| 16 May 1953 | 7+ | 85 | G3 |
| 17 May 1953 | 7- | 28 | G3 |
| 18 May 1953 | 4- | 16 | – |
Highest-Ap days of 1953
85
80
68
63
61
58
56
55
55
51
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 55: No. 724 of 34,615 days since 1932 by Ap.