Wednesday, April 15th
Chicago, United States
| Time |
Wave height |
Wave rating |
Swell period |
Swell direction |
Wind direction |
Wind speed |
Wind rating |
Total rating |
| 6:00 | 0.3m | 1 | 3s | 156° | 285° | 29 km/h | 2 | 1.38 |
| 7:00 | 0.3m | 1 | 2.95s | 156° | 293° | 13 km/h | 3 | 1.64 |
| 8:00 | 0.3m | 1 | 2.9s | 155° | 243° | 11 km/h | 3 | 1.91 |
| 9:00 | 0.3m | 1 | 2.8s | 154° | 227° | 15 km/h | 3 | 1.99 |
| 10:00 | 0.3m | 1 | 2.75s | 153° | 232° | 21 km/h | 2 | 1.66 |
| 11:00 | 0.3m | 1 | 2.7s | 152° | 227° | 19 km/h | 3 | 1.98 |
| 12:00 | 0.32m | 1 | 2.65s | 152° | 235° | 11 km/h | 3 | 1.94 |
| 13:00 | 0.32m | 1 | 2.65s | 151° | 48° | 5 km/h | 4 | 2.13 |
| 14:00 | 0.34m | 1 | 2.7s | 151° | 46° | 12 km/h | 3 | 1.82 |
| 15:00 | 0.34m | 1 | 2.8s | 150° | 113° | 9 km/h | 4 | 2.49 |
| 16:00 | 0.36m | 1 | 2.85s | 150° | 210° | 12 km/h | 3 | 2.07 |
| 17:00 | 0.34m | 1 | 2.85s | 152° | 203° | 20 km/h | 2 | 1.82 |
| 18:00 | 0.34m | 1 | 2.85s | 155° | 34° | 1 km/h | 4 | 2.03 |
| Sunrise: 6:09 | Sunset: 19:31 |