Home › Geomagnetic history › 1946
Geomagnetic storm on 22 Sep 1946 (G5)
Max Kp9oG5
Ap198No. 2 in 1946
Consecutive G1+ days4
Ap rank16since 1932
Kp by 3-hour slot (UTC)
4-
8+
8-
9-
9o
8+
7o
6o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 19 Sep 1946 | 7- | 58 | G3 |
| 20 Sep 1946 | 4o | 14 | – |
| 21 Sep 1946 | 5+ | 22 | G1 |
| 22 Sep 1946 | 9o | 198 | G5 |
| 23 Sep 1946 | 8o | 146 | G4 |
| 24 Sep 1946 | 5+ | 21 | G1 |
| 25 Sep 1946 | 2- | 5 | – |
Highest-Ap days of 1946
213
198
195
152
146
136
127
118
117
117
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 9o, Ap 198: No. 16 of 34,615 days since 1932 by Ap.