The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.

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1

C3.1
Kp3+

2

C3.2
Kp3-

3

X1.1
Kp2+

4

M5.7
Kp2

5

M2.7
Kp1+

6

C4.8
Kp2-

7

C3.6
Kp1

8

C8.3
Kp2

9

C2.5
Kp3

10

X1.51
Kp1+

11

M2.67
Kp2

12

M1.3
Kp3-

13

C4.3
Kp3-

14

C5.8
Kp3-

15

M2.28
Kp3+

16

M2.4
Kp3

17

C9.91
Kp3+

18

M1.1
Kp3

19

M5.6
Kp3-

20

M3
Kp4-

21

C3.5
Kp4-

22

C4.7
Kp4-

23

C5.2
Kp2+

24

C5.1
Kp2-

25

M1.3
Kp2+

26

C7.3
Kp1+

27

C2.3
Kp5

28

C1.8
Kp5

29

B7.6
Kp4-

30

C1.5
Kp3

31

B6.1
Kp3+
     

G4 - Severe geomagnetic storm

Observed Kp: 8
Threshold reached: 20:54 UTC

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

Oulu, Rovaniemi
Luleå

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

Kuopio
Bergen, Trondheim
Arkhangelsk
Sundsvall, Umeå

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

Helsinki, Tampere, Turku
Petrozavodsk, Syktyvkar
The density of the solar wind is moderate (23.49 p/cm3)
The strength of the interplanetary magnetic field is moderate (12.3nT), the direction is North (5.65nT).
The Disturbance Storm Time index predicts strong storm conditions right now (-147nT)

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Latest alerts

21:00 UTC - Geomagnetic activity

Severe G4 geomagnetic storm (Kp8) Threshold Reached: 20:55 UTC

alert


19:45 UTC - Geomagnetic activity

Strong G3 geomagnetic storm (Kp7) Threshold Reached: 19:25 UTC

alert


19:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 18:38 UTC

alert


18:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 18:28 UTC

alert


17:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 16:34 UTC

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/15M1.2
Last geomagnetic storm2025/04/15Kp6+ (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025124.1 -10.1
Last 30 days124.7 -16.6

This day in history*

Solar flares
12002M3.66
22012M2.54
32001M1.68
42014M1.47
52002M1.33
DstG
12015-88G2
21973-79G2
32000-78
41971-73
52024-65G1
*since 1994

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