Geomagnetic forecast
Forecast of magnetic storms from May 21, 2011 to May 23, 2011
| 21.05.2011 | 22.05.2011 | 23.05.2011 | |
| Probability of a magnetic storm | 1% | 5% | 5% |
| Probability of a strong magnetic storm | 1% | 1% | 1% |
27-day forecast of magnetic storms
| 21.05.2011 | 22.05.2011 | 23.05.2011 | |
| Probability of a magnetic storm | 1% | 5% | 5% |
| Probability of a strong magnetic storm | 1% | 1% | 1% |