Maximum Kp index on April 18, 2004
Kp = 4
Maximum Kp index on April 18, 2004
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Springfield on April 18, 2004
Time zone — UTC−05 — summer time (Springfield | 39.78 N 89.65 W)
Geomagnetic storms in Springfield in April 2004
Time zone — UTC−05 — summer time (Springfield | 39.78 N 89.65 W)
Geomagnetic activity indices on April 18, 2004
| Geomagnetic index Ap | 11 |
|---|---|
| Solar radio flux F10.7 | 109 |
Diary
- 04.08.2026 The magnetic storm has ended
- 02.08.2026 The first magnetic storm of August has begun
- 02.08.2026 A moderate magnetic storm is expected today, Sunday.