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Geomagnetic storm on 16 Jan 1938 (G4)
Max Kp8-G4
Ap34No. 35 in 1938
Consecutive G1+ days7
Ap rank2,223since 1932
Kp by 3-hour slot (UTC)
1+
2-
3-
2+
3+
4o
3+
8-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 13 Jan 1938 | 6- | 29 | G2 |
| 14 Jan 1938 | 3+ | 9 | – |
| 15 Jan 1938 | 3o | 9 | – |
| 16 Jan 1938 | 8- | 34 | G4 |
| 17 Jan 1938 | 8+ | 120 | G4 |
| 18 Jan 1938 | 5+ | 34 | G1 |
| 19 Jan 1938 | 5o | 24 | 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 34: No. 2,223 of 34,615 days since 1932 by Ap.