Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:

The current surf forecast for Steamer Lane-The Slot at 3AM is: 1.6m 15s primary swell from a West-northwest direction and 0.3m 13s secondary swell from a South direction, 0.1m 10s secondary swell from a South direction (forecast issued at 09:00pm December 11). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 5ft (1.5m) | 14s |
| Afternoon (12 Dec) | 4.5ft (1.4m) | 14s |
| Evening (12 Dec) | 4.5ft (1.3m) | 13s |
Table - waves today at Steamer Lane-The Slot. (Swell directed towards the surf break)
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | W | W | W | W |
| Period(s) (?) | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 |
Wave (?)Graph | ||||||||||||||||||||||||
| 1324 | 1273 | 1074 | 1045 | 980 | 850 | 803 | 651 | 547 | 538 | 447 | 440 | 323 | 254 | 203 | 199 | 183 | 142 | 150 | 150 | 103 | 98 | 91 | 89 | |
Wind (km/h) | NNE | NE | NE | NE | NE | NE | SW | WNW | NE | NE | NE | ENE | ENE | ESE | SW | SW | ESE | ENE | NE | NE | ENE | ENE | W | W |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | glass | glass | glass | off | off | off | cross- off | cross- off | glass | on | glass | glass | glass | off | off | cross- off | glass | cross- on |
High Tide / height (m) | 5:10AM 1.50 | 4:48PM 1.01 | 5:46AM 1.54 | 6:40PM 0.98 | 6:18AM 1.58 | |||||||||||||||||||
Low Tide / height (m) | 9:48PM 0.25 | 11:31AM 0.57 | 10:40PM 0.42 | 12:30PM 0.38 | 11:32PM 0.59 | 1:19PM 0.21 | ||||||||||||||||||
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:51 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 15 | 15 | 14 | 18 | 21 | 20 | 17 | 16 | 16 | 15 | 15 | 17 | 19 | 17 | 15 | 15 | 15 | 14 | 14 | 17 | 19 | 19 |
| Feels °C (?) | 12 | 11 | 11 | 11 | 10 | 14 | 19 | 18 | 14 | 13 | 13 | 12 | 12 | 14 | 17 | 15 | 15 | 14 | 13 | 11 | 11 | 14 | 17 | 17 |

70-foot plus waves predicted for Portuguese big wave tow surfing competition.

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