Home › Geomagnetic history › 2001

Geomagnetic storm on 18 Apr 2001 (G3)

Max Kp7+G3

Ap50No. 13 in 2001

Consecutive G1+ days1

Ap rank942since 1932

Kp by 3-hour slot (UTC)

00–036o

03–067+

06–097-

09–123o

12–152o

15–183-

18–212+

21–243-

The days around it

Date	Max Kp	Ap	Level
15 Apr 2001	4+	13	–
16 Apr 2001	3+	8	–
17 Apr 2001	2+	6	–
18 Apr 2001	7+	50	G3
19 Apr 2001	3-	6	–
20 Apr 2001	3-	6	–
21 Apr 2001	3+	8	–

Highest-Ap days of 2001

31 Mar 2001192

6 Nov 2001142

24 Nov 2001104

22 Oct 200196

11 Apr 200185

20 Mar 200174

3 Oct 200169

8 Apr 200163

21 Oct 200157

2 Oct 200152

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.

← 13 Apr 2001 17 Aug 2001 →

About this page

Max Kp 7+, Ap 50: No. 942 of 34,615 days since 1932 by Ap.