List of magnetic storms in April 2004
Location — Hay River (geographic coordinates — 60.8 N -115.78 W | time zone UTC-06 - summer time)
Days with magnetic storms — 4
03 April 2004 — Magnetic storm of level G1
05 April 2004 — Magnetic storm of level G1
08 April 2004 — Magnetic storm of level G1
23 April 2004 — Magnetic storm of level G1
Days with geomagnetic disturbances — 10
06 April 2004 — geomagnetic disturbances
07 April 2004 — geomagnetic disturbances
09 April 2004 — geomagnetic disturbances
12 April 2004 — geomagnetic disturbances
16 April 2004 — geomagnetic disturbances
18 April 2004 — geomagnetic disturbances
24 April 2004 — geomagnetic disturbances
25 April 2004 — geomagnetic disturbances
28 April 2004 — geomagnetic disturbances
30 April 2004 — geomagnetic disturbances
Maximum of solar activity in April 2004
Solar radio flux (10.7 cm) = 117
Mean planetary A index = 23
Mean planetary Kp index = 5