Geomagnetic Storms of 2007
16 geomagnetic storms of G1 or more began in 2007: 13 G1, 3 G2, 0 G3, 0 G4, 0 G5. The strongest began May 23, 2007 and reached Kp 6-, rank 1,673 of every storm since 1932.
By month
Every storm of 2007
Times are UT, when the first block at Kp 5 or more began.
| Began (UTC) | Level | Peak Kp | Hours | Highest daily Ap |
|---|---|---|---|---|
| Jan 15, 12:00 | G1 Minor | 5 | 3 | 16 |
| Jan 29, 12:00 | G1 Minor | 5+ | 6 | 28 |
| Feb 13, 21:00 | G2 Moderate | 6- | 3 | 21 |
| Mar 13, 00:00 | G1 Minor | 5 | 3 | 24 |
| Apr 1, 00:00 | G1 Minor | 5 | 3 | 29 |
| Apr 2, 03:00 | G1 Minor | 5 | 3 | 23 |
| Apr 23, 03:00 | G1 Minor | 5 | 3 | 16 |
| Apr 27, 21:00 | G1 Minor | 5 | 3 | 16 |
| May 7, 15:00 | G1 Minor | 5 | 3 | 16 |
| May 23, 09:00 | G2 Moderate | 6- | 18 | 34 |
| Jul 11, 09:00 | G1 Minor | 5 | 3 | 21 |
| Jul 14, 18:00 | G1 Minor | 5+ | 3 | 19 |
| Aug 6, 21:00 | G2 Moderate | 6- | 6 | 22 |
| Sep 27, 15:00 | G1 Minor | 5 | 3 | 18 |
| Sep 28, 21:00 | G1 Minor | 5 | 12 | 30 |
| Nov 20, 12:00 | G1 Minor | 5+ | 3 | 24 |
More
Sources
Kp and ap from GFZ Helmholtz Centre for Geosciences, Geomagnetic Observatory Niemegk, licensed CC BY 4.0: Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021, The geomagnetic Kp index and derived indices of geomagnetic activity, Space Weather, doi:10.1029/2020SW002641; data doi:10.5880/Kp.0001. Storms, levels and aurora reach worked out by WeatherOverTime from those values and NOAA’s space weather scales. Definitive through August 31, 2026; later values are preliminary. Rebuilt 2026-09-24.