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Geomagnetic storm on 24 May 1947 (G4)
Max Kp8-G4
Ap52No. 28 in 1947
Consecutive G1+ days3
Ap rank816since 1932
Kp by 3-hour slot (UTC)
4-
3+
8-
7-
4+
3+
3o
4-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 21 May 1947 | 3o | 8 | – |
| 22 May 1947 | 5- | 9 | G1 |
| 23 May 1947 | 6- | 24 | G2 |
| 24 May 1947 | 8- | 52 | G4 |
| 25 May 1947 | 3+ | 12 | – |
| 26 May 1947 | 4+ | 21 | – |
| 27 May 1947 | 4- | 14 | – |
Highest-Ap days of 1947
128
100
100
90
90
84
82
81
80
75
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 52: No. 816 of 34,615 days since 1932 by Ap.