G2moderate

The geomagnetic storm of 6 July 1945

On 6 July 1945 the Kp index reached 6−: a G2 (moderate) storm, with 6 hours at Kp 5 or more. At its peak the lights could be seen from 352,522 places in the atlas, down to about 50° magnetic latitude.

Kp 6−Peak Kp · 6 July 1945 06:00 UT

6Hours at Kp 5 or more

67Largest ap

Solar cycle 18Year 2 of solar cycle 18

Kp every three hours

56789

5 Jul6 Jul7 Jul

Where the lights could be seen

At Kp 6− the lights reach 352,522 places of the atlas on the horizon and 116,237 overhead, down to about 50° magnetic latitude.

Countries

Russia140,354 placesUnited States35,956 placesSweden27,876 placesFinland24,291 placesLithuania20,495 placesCanada19,463 placesBelarus16,617 placesNorway13,111 placesUnited Kingdom10,715 placesLatvia7,542 places

At the edge: just within reach

MinskBelarusSamaraRussiaLeedsUnited KingdomBostonUnited StatesTolyattiRussiaBarnaulRussiaDublinIrelandManchesterUnited Kingdom

The largest towns that could see them

Before and after

Previous storm1 – 2 July 1945 · Kp 6

Next storm17 July 1945 · Kp 5−

1945

Geomagnetic storms of 1945Every storm

Geomagnetic storms since 1932Geomagnetic storm archive

Strong storms at the same time of year

8 – 10 July 1958Kp 9 · 42 h

4 – 5 July 1941Kp 9 · 30 h

4 – 6 July 1974Kp 9− · 51 h

8 – 10 July 1991Kp 8 · 36 h

3 – 5 July 1978Kp 8 · 24 h

8 – 10 July 1970Kp 7+ · 27 h