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 Blackhead at 1AM is: 1.3m 7s primary swell from a South direction and 0.5m 8s secondary swell from a East-northeast direction, 0.1m 14s secondary swell from a South direction (forecast issued at 06:00pm December 12). The wind direction is predicted to be cross-offshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 4ft (1.2m) | 7s |
| Afternoon (13 Dec) | 4ft (1.2m) | 7s |
| Evening (13 Dec) | 4ft (1.2m) | 8s |
Table - waves today at Blackhead. (Swell directed towards the surf break)
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | S | S | S | S | S | S | S | S | S | SSW | S | S | SSW | SSW | SE | ENE | ENE | ENE | NE | NE | NE | NE | NE | ENE |
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 6 | 8 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
Wave (?)Graph | ||||||||||||||||||||||||
| 295 | 246 | 189 | 159 | 159 | 143 | 152 | 121 | 160 | 96 | 164 | 78 | 81 | 60 | 31 | 65 | 32 | 56 | 49 | 51 | 103 | 132 | 122 | 73 | |
Wind (km/h) | S | S | S | SW | SW | SW | S | S | SSE | SE | E | N | NW | NNW | NE | ENE | ENE | NE | NNE | N | NW | NNW | NE | ENE |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- on | glass | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- on | cross- on |
High Tide / height (m) | 12:53AM 1.35 | 1:14PM 1.41 | 1:46AM 1.31 | 2:04PM 1.34 | 2:36AM 1.30 | |||||||||||||||||||
Low Tide / height (m) | 6:45PM 0.13 | 7:02AM 0.20 | 7:35PM 0.17 | 7:54AM 0.25 | 8:23PM 0.22 | 8:45AM 0.29 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - |
| Sunset | - | 8:36 | - | - | - | - | - | - | - | 8:37 | - | - | - | - | - | - | - | 8:37 | - | - | - | - | - | - |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 13 | 11 | 10 | 10 | 14 | 15 | 16 | 15 | 13 | 12 | 11 | 11 | 16 | 18 | 18 | 17 | 15 | 13 | 13 | 14 | 19 | 20 |
| Feels °C (?) | 10 | 10 | 10 | 8 | 7 | 8 | 11 | 12 | 12 | 12 | 12 | 11 | 10 | 10 | 14 | 13 | 12 | 12 | 12 | 11 | 12 | 13 | 18 | 16 |

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

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