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Geomagnetic storm on 12 May 1949 (G5)

Max Kp9-G5

Ap153No. 3 in 1949

Consecutive G1+ days3

Ap rank42since 1932

Kp by 3-hour slot (UTC)

00–032o

03–062o

06–097+

09–127+

12–158+

15–189-

18–218+

21–247o

The days around it

Date	Max Kp	Ap	Level
9 May 1949	4+	15	–
10 May 1949	3+	11	–
11 May 1949	5-	15	G1
12 May 1949	9-	153	G5
13 May 1949	8o	59	G4
14 May 1949	4-	18	–
15 May 1949	3+	8	–

Highest-Ap days of 1949

25 Jan 1949156

15 Oct 1949156

12 May 1949153

26 Jan 1949100

14 Oct 194991

22 Mar 194990

8 Apr 194983

7 Oct 194965

4 Aug 194964

16 Oct 194962

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.

← 3 May 1949 13 May 1949 →

About this page

Max Kp 9-, Ap 153: No. 42 of 34,615 days since 1932 by Ap.