M
T
W
T
F
S
S
21 may
+19
+10
22
+21
+10
23
+24
+14
24
+23
+15
25
+23
+11
26
+26
+10
+25
min: +12
+27
+16
+27
+15
+27
+16
+29
+18
+29
+20
+24
+20
+21
+18
+23
+16
+28
+17
6
+22
+17
7
+20
+16
8
+26
+15
9
+20
+15
10
+14
+12
11
+16
+12
12
+14
+13
13
+13
+12
14
+14
+12
15
+17
+12
16
+14
+12
17
+15
+7
18
+15
+10
19
+11
+10
20
+19
+9
21
+22
+11
22
+24
+12
23
+25
+14
24
+23
+14
25
+20
+14
26
27
28
29
30
1 jul

Geomagnetic field

S, 27 may
2 points
Small perturbations
M, 28 may
3 points
Weak geomagnetic storm
T, 29 may
3 points
Weak geomagnetic storm