Geomagnetic storms in Thunder bay in July 2004
Time zone — UTC−04 — summer time (Thunder bay | 48.42 N 89.28 W)
Geomagnetic storm calendar in July 2004 by time in Thunder bay
Days with magnetic storms — 8 Days with geomagnetic disturbances — 4
Ap and F10.7 index values in July 2004
Maximum value of the Ap index for the month — 162 Maximum value of the F10.7 index for the month — 175 Maximum value of the Kp index for the month — 9