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Geomagnetic storm on 13 May 1949 (G4)
Max Kp8oG4
Ap59No. 11 in 1949
Consecutive G1+ days3
Ap rank621since 1932
Kp by 3-hour slot (UTC)
8o
7+
3+
2o
5+
3+
1o
2+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 10 May 1949 | 3+ | 11 | – |
| 11 May 1949 | 5- | 15 | G1 |
| 12 May 1949 | 9- | 153 | G5 |
| 13 May 1949 | 8o | 59 | G4 |
| 14 May 1949 | 4- | 18 | – |
| 15 May 1949 | 3+ | 8 | – |
| 16 May 1949 | 4o | 15 | – |
Highest-Ap days of 1949
156
156
153
100
91
90
83
65
64
62
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 8o, Ap 59: No. 621 of 34,615 days since 1932 by Ap.