Home › Geomagnetic history › 1958
Geomagnetic storm on 27 Aug 1958 (G3)
Max Kp7-G3
Ap64No. 15 in 1958
Consecutive G1+ days1
Ap rank503since 1932
Kp by 3-hour slot (UTC)
4+
6o
7-
7-
5o
4o
6o
4-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 24 Aug 1958 | 8- | 85 | G4 |
| 25 Aug 1958 | 5- | 18 | G1 |
| 26 Aug 1958 | 4o | 14 | – |
| 27 Aug 1958 | 7- | 64 | G3 |
| 28 Aug 1958 | 4- | 13 | – |
| 29 Aug 1958 | 3+ | 11 | – |
| 30 Aug 1958 | 3o | 9 | – |
Highest-Ap days of 1958
200
199
131
103
89
85
82
82
77
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 64: No. 503 of 34,615 days since 1932 by Ap.