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Geomagnetic storm on 9 Sep 1991 (G3)

Max Kp7oG3

Ap49No. 41 in 1991

Consecutive G1+ days3

Ap rank980since 1932

Kp by 3-hour slot (UTC)

00–034o

03–063+

06–094+

09–125o

12–155o

15–185-

18–215o

21–247o

The days around it

Date	Max Kp	Ap	Level
6 Sep 1991	4+	14	–
7 Sep 1991	4o	14	–
8 Sep 1991	5o	22	G1
9 Sep 1991	7o	49	G3
10 Sep 1991	6+	37	G2
11 Sep 1991	4+	22	–
12 Sep 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.

← 27 Aug 1991 1 Oct 1991 →

About this page

Max Kp 7o, Ap 49: No. 980 of 34,615 days since 1932 by Ap.