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Geomagnetic storm on 16 Aug 1947 (G3)
Max Kp7+G3
Ap54No. 26 in 1947
Consecutive G1+ days12
Ap rank746since 1932
Kp by 3-hour slot (UTC)
7+
4-
3+
5o
5+
5+
5o
4+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 13 Aug 1947 | 5+ | 26 | G1 |
| 14 Aug 1947 | 5- | 12 | G1 |
| 15 Aug 1947 | 7+ | 55 | G3 |
| 16 Aug 1947 | 7+ | 54 | G3 |
| 17 Aug 1947 | 6o | 58 | G2 |
| 18 Aug 1947 | 6+ | 60 | G2 |
| 19 Aug 1947 | 6+ | 52 | G2 |
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 7+, Ap 54: No. 746 of 34,615 days since 1932 by Ap.