List of magnetic storms in May 2011
Location — Anchorage (geographic coordinates — 61.22 N -149.88 W | time zone UTC-08 - summer time)
Days with magnetic storms — 4
01 May 2011 — Magnetic storm of level G1
27 May 2011 — Magnetic storm of level G2
28 May 2011 — Magnetic storm of level G2
29 May 2011 — Magnetic storm of level G1
Days with geomagnetic disturbances — 3
02 May 2011 — geomagnetic disturbances
15 May 2011 — geomagnetic disturbances
16 May 2011 — geomagnetic disturbances
Maximum of solar activity in May 2011
Solar radio flux (10.7 cm) = 112
Mean planetary A index = 40
Mean planetary Kp index = 6