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Geomagnetic storm on 26 Jan 1938 (G4)
Max Kp8+G4
Ap62No. 10 in 1938
Consecutive G1+ days2
Ap rank541since 1932
Kp by 3-hour slot (UTC)
8+
6+
4+
5-
4o
4+
4o
2o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 23 Jan 1938 | 4+ | 16 | – |
| 24 Jan 1938 | 4- | 16 | – |
| 25 Jan 1938 | 9- | 107 | G5 |
| 26 Jan 1938 | 8+ | 62 | G4 |
| 27 Jan 1938 | 4- | 12 | – |
| 28 Jan 1938 | 3+ | 10 | – |
| 29 Jan 1938 | 5- | 15 | G1 |
Highest-Ap days of 1938
136
128
120
107
103
100
76
67
67
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 8+, Ap 62: No. 541 of 34,615 days since 1932 by Ap.