List of magnetic storms in April 2001
Location — Bismarck (geographic coordinates — 46.81 N -100.78 W | time zone UTC-05 - summer time)
Days with magnetic storms — 14
01 April 2001 — Magnetic storm of level G2
04 April 2001 — Magnetic storm of level G1
05 April 2001 — Magnetic storm of level G1
08 April 2001 — Magnetic storm of level G2
09 April 2001 — Magnetic storm of level G1
11 April 2001 — Magnetic storm of level G4
12 April 2001 — Magnetic storm of level G2
13 April 2001 — Magnetic storm of level G3
17 April 2001 — Magnetic storm of level G3
18 April 2001 — Magnetic storm of level G3
22 April 2001 — Magnetic storm of level G1
23 April 2001 — Magnetic storm of level G1
27 April 2001 — Magnetic storm of level G1
28 April 2001 — Magnetic storm of level G1
Days with geomagnetic disturbances — 7
02 April 2001 — geomagnetic disturbances
06 April 2001 — geomagnetic disturbances
07 April 2001 — geomagnetic disturbances
14 April 2001 — geomagnetic disturbances
15 April 2001 — geomagnetic disturbances
21 April 2001 — geomagnetic disturbances
29 April 2001 — geomagnetic disturbances
Maximum of solar activity in April 2001
Solar radio flux (10.7 cm) = 258
Mean planetary A index = 60
Mean planetary Kp index = 8