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Geomagnetic storm on 31 Mar 1941 (G4)

Max Kp8-G4

Ap76No. 10 in 1941

Consecutive G1+ days4

Ap rank343since 1932

Kp by 3-hour slot (UTC)

00–038-

03–067-

06–096-

09–127o

12–155+

15–184o

18–213+

21–243+

The days around it

Date	Max Kp	Ap	Level
28 Mar 1941	6+	59	G2
29 Mar 1941	6+	42	G2
30 Mar 1941	8-	85	G4
31 Mar 1941	8-	76	G4
1 Apr 1941	3-	7	–
2 Apr 1941	3+	11	–
3 Apr 1941	4+	14	–

Highest-Ap days of 1941

18 Sep 1941232

5 Jul 1941222

1 Mar 1941207

19 Sep 1941176

4 Aug 1941110

30 Mar 194185

1 Dec 194183

14 Mar 194179

1 Nov 194179

31 Mar 194176

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.

← 30 Mar 1941 24 Apr 1941 →

About this page

Max Kp 8-, Ap 76: No. 343 of 34,615 days since 1932 by Ap.