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Geomagnetic storm on 13 Jul 1991 (G5)

Max Kp9-G5

Ap134No. 3 in 1991

Consecutive G1+ days7

Ap rank71since 1932

Kp by 3-hour slot (UTC)

00–035-

03–065o

06–097-

09–127o

12–158o

15–189-

18–216o

21–247+

The days around it

Date	Max Kp	Ap	Level
10 Jul 1991	5o	19	G1
11 Jul 1991	5o	20	G1
12 Jul 1991	6-	28	G2
13 Jul 1991	9-	134	G5
14 Jul 1991	7-	75	G3
15 Jul 1991	4+	12	–
16 Jul 1991	5+	22	G1

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.

← 9 Jul 1991 14 Jul 1991 →

About this page

Max Kp 9-, Ap 134: No. 71 of 34,615 days since 1932 by Ap.