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Geomagnetic storm on 11 Jun 1991 (G3)

Max Kp7+G3

Ap88No. 14 in 1991

Consecutive G1+ days10

Ap rank235since 1932

Kp by 3-hour slot (UTC)

00–037o

03–067+

06–096+

09–126-

12–156-

15–185-

18–216+

21–245+

The days around it

Date	Max Kp	Ap	Level
8 Jun 1991	5+	26	G1
9 Jun 1991	7-	58	G3
10 Jun 1991	8-	119	G4
11 Jun 1991	7+	88	G3
12 Jun 1991	7-	66	G3
13 Jun 1991	8-	120	G4
14 Jun 1991	3+	8	–

Highest-Ap days of 1991

5 Jun 1991196

24 Mar 1991161

13 Jul 1991134

25 Mar 1991130

29 Oct 1991128

13 Jun 1991120

10 Jun 1991119

9 Nov 1991119

9 Jul 1991117

26 Mar 1991114

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.

← 10 Jun 1991 12 Jun 1991 →

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Max Kp 7+, Ap 88: No. 235 of 34,615 days since 1932 by Ap.