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Geomagnetic storm on 11 Feb 1958 (G5)

Max Kp9oG5

Ap199No. 2 in 1958

Consecutive G1+ days3

Ap rank14since 1932

Kp by 3-hour slot (UTC)

00–039o

03–068+

06–099-

09–128+

12–158o

15–185+

18–216o

21–246o

The days around it

Date	Max Kp	Ap	Level
8 Feb 1958	5-	27	G1
9 Feb 1958	4o	18	–
10 Feb 1958	5o	24	G1
11 Feb 1958	9o	199	G5
12 Feb 1958	6+	59	G2
13 Feb 1958	4+	18	–
14 Feb 1958	5o	23	G1

Highest-Ap days of 1958

8 Jul 1958200

11 Feb 1958199

4 Sep 1958131

29 Jun 1958103

24 Oct 195889

24 Aug 195885

17 Aug 195882

25 Sep 195882

7 Jun 195877

9 Jul 195875

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.

← 21 Jan 1958 5 Mar 1958 →

About this page

Max Kp 9o, Ap 199: No. 14 of 34,615 days since 1932 by Ap.