Aurora & Space Weather
🌐 English

Home › Geomagnetic history › 1940

Geomagnetic storm on 13 Nov 1940 (G3)

Max Kp7-G3
Ap49No. 16 in 1940
Consecutive G1+ days2
Ap rank951since 1932

Kp by 3-hour slot (UTC)

The days around it

DateMax KpApLevel
10 Nov 19401+2–
11 Nov 19402o2–
12 Nov 19405+22G1
13 Nov 19407-49G3
14 Nov 19404o16–
15 Nov 19403+12–
16 Nov 19404+16–

Highest-Ap days of 1940

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.

← 8 Oct 19401 Mar 1941 →

About this page

Max Kp 7-, Ap 49: No. 951 of 34,615 days since 1932 by Ap.