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Geomagnetic storm on 24 May 1940 (G4)

Max Kp8-G4

Ap78No. 8 in 1940

Consecutive G1+ days3

Ap rank320since 1932

Kp by 3-hour slot (UTC)

00–033o

03–067o

06–096-

09–128-

12–156+

15–185-

18–216-

21–244+

The days around it

Date	Max Kp	Ap	Level
21 May 1940	4+	8	–
22 May 1940	6-	31	G2
23 May 1940	5+	18	G1
24 May 1940	8-	78	G4
25 May 1940	4o	12	–
26 May 1940	5+	24	G1
27 May 1940	6-	21	G2

Highest-Ap days of 1940

30 Mar 1940189

24 Mar 1940187

25 Mar 1940184

31 Mar 1940128

25 Jun 1940126

29 Mar 1940100

3 Apr 194098

24 May 194078

25 Apr 194070

1 Apr 194066

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.

← 26 Apr 1940 25 Jun 1940 →

About this page

Max Kp 8-, Ap 78: No. 320 of 34,615 days since 1932 by Ap.