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Geomagnetic storm on 8 Nov 1991 (G5)
Max Kp9-G5
Ap98No. 13 in 1991
Consecutive G1+ days2
Ap rank179since 1932
Kp by 3-hour slot (UTC)
3-
3o
4o
4o
7-
7-
8-
9-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 5 Nov 1991 | 6- | 27 | G2 |
| 6 Nov 1991 | 5o | 18 | G1 |
| 7 Nov 1991 | 3+ | 12 | – |
| 8 Nov 1991 | 9- | 98 | G5 |
| 9 Nov 1991 | 8+ | 119 | G4 |
| 10 Nov 1991 | 4o | 22 | – |
| 11 Nov 1991 | 5o | 20 | 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 98: No. 179 of 34,615 days since 1932 by Ap.