Hall of storms · #9 / 10
July 15, 1959
Peak Kp
Kp 9.0
G5 — top storm class
Peak moment
15:00 UTC
July 15, 1959
Duration
1 day
July 15, 1959
At the ceiling
9.0 ×1
1 intervals at Kp 9.0
Open in the archive
July 1959 — the three-hourly Kp values, day by day