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Geomagnetic storm on 24 Mar 1991 (G5)
Max Kp9-G5
Ap161No. 2 in 1991
Consecutive G1+ days4
Ap rank34since 1932
Kp by 3-hour slot (UTC)
3o
9-
8o
7+
5+
5o
8o
9-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 21 Mar 1991 | 7- | 26 | G3 |
| 22 Mar 1991 | 5- | 20 | G1 |
| 23 Mar 1991 | 4- | 11 | – |
| 24 Mar 1991 | 9- | 161 | G5 |
| 25 Mar 1991 | 9- | 130 | G5 |
| 26 Mar 1991 | 8o | 114 | G4 |
| 27 Mar 1991 | 5- | 31 | G1 |
Highest-Ap days of 1991
196
161
134
130
128
120
119
119
117
114
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 9-, Ap 161: No. 34 of 34,615 days since 1932 by Ap.