Top 50 geomagnetic storms of 1939

On this page you will find an overview of the strongest geomagnetic storms of 1939 together with links to more information in our archive. The Kp-values on this page are the official, finalized Kp-values from the GFZ in Potsdam, Germany. Times are in UTC.

Ap Kp max00-03h03-06h06-09h09-12h12-15h15-18h18-21h21-00h
11939/04/24799-3+2+22+1+79-7+
21939/04/1713586-7+87-8-7+7-6+
31939/10/1389856-6+44-6-8-8
41939/10/156887-87-3+3+5-43
51939/08/221338-8-8-5-57+77+8-
61939/04/23928-4-78-6+6+7-64-
71939/08/23898-8-7+7-7-6444-
81939/08/12888-68-7+7-54-5-6-
91939/08/16628-1+3-3+4-7+8-5-6-
101939/07/05947+5+6+6+7-7-7+6+5-
111939/02/25737+7+6-7-66-544+
121939/04/25617+7+5+5+5-5+55-5-
131939/02/24557+3-4-23-3+677+
141939/10/04517+7+7+4-343-3+2-
151939/07/21367+3-2+0+57+4+33+
161939/06/146176-5+7-75-4+4-4
171939/09/175573-5+54-5-675
181939/10/14747-5+67-7-6654-
191939/03/28567-4-43+4-5+6+6+7-
201939/05/01567-21+3+67-5-6+6+
211939/05/07517-7-66-5443+4
221939/04/19457-445-3-6-7-54
231939/07/03457-3+4457-56-3
241939/07/04437-3+322+4+5+6+7-
251939/06/16357-4+5-5+7-3321+
261939/10/09327-4-37-3+5+3-31+
271939/03/29716+6-6+666-5+6-5+
281939/05/02486+65+6+5-4+4+4-4
291939/10/06326+4+6+54-334-3-
301939/07/204764+6-55-6544+
311939/12/074666-65+455-44
321939/04/184262+2+646-5+55-
331939/09/03406665-5-33+3+4
341939/05/0640643+3+4-6-55-6
351939/08/1334665+4-4-3+4+4-3+
361939/05/0527623+3+32+3+65
371939/04/271461-1-11+1-21-6
381939/10/03386-3-24-4+5+5-6-6-
391939/07/26356-1+6-6-5-4+4+3+3+
401939/10/16356-4-4434+6-55-
411939/05/08346-6-4+54-5-344-
421939/03/02266-5+6-4-43+1+22+
431939/05/09266-46-4-4+3+4-22+
441939/08/11166-21+1+0+3-3+36-
451939/02/06435+344+5+5+5+5+5
461939/11/13435+45+55+5+45-4+
471939/04/10425+5+4+54+545-5+
481939/10/17365+45+5-44-554-
491939/05/29345+4+5-5+4+5-44+3+
501939/09/20335+55+55-3+4-4-3-
© Potsdam - CC BY 4.0 - Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021. - ©WDC for Geomagnetism, Kyoto

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Oulu, Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø
Murmansk, Norilsk, Vorkuta
Kiruna, Luleå
The strength of the interplanetary magnetic field is moderate (14.3nT), the direction is slightly South (-5.44nT).

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