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Bordeaux Harbour
Bordeaux Harbour Picture by Peter Frankland
Today
High
11°
Low
8°
10%
F4
Tomorrow
High
11°
Low
8°
80%
F3
Mon, 22 Dec
High
11°
Low
6°
35%
F3
Tue, 23 Dec
High
11°
Low
6°
25%
F3
Wed, 24 Dec
High
8°
Low
5°
65%
F5
Thu, 25 Dec
High
6°
Low
4°
65%
F5
Fri, 26 Dec
High
8°
Low
6°
25%
F4
Morning, Today
High
11°
Mainly sunny.
10%
1
UV
F4
South to southeast light F3, soon increasing moderate F4, perhaps occasionally fresh F5 late morning.
Sunrise 08:04
Afternoon
High
11°
Sunny spells soon turning cloudy, with some rain possible by dusk.
35%
1
UV
F5
Southeast moderate F4 to fresh F5.
Sunset 16:13
Night
Low
8°
Cloudy with a spell of rain in the evening. Clear spells and isolated showers after midnight.
90%
F4
South to southeast moderate F4 to fresh F5, perhaps briefly strong F6 in Alderney.
New

Shipping Forecast

General Situation
At 18:00UTC low 963mb, mid-Atlantic, expected 992mb just west of Ireland by Sunday, with associated fronts affecting the area later.

11.3°C
Sea Temperature

Forecast from 00:00UTC Saturday to 00:00UTC Sunday.
Wind
West to southwest 3 to 4, backing south to southeast 4 to 5 by dawn, increasing 5 to 6 in the afternoon, perhaps 7 mid-Channel for a time, veering south to southwest 4 to 5 later.
Sea State
Smooth or slight with a low to moderate swell, locally moderate to rather rough in the west later.
Weather
Risk of mist patches near the French coast until mid-morning. Rain spreading into the west of the area shortly after dusk, locally heavy later.
Visibility
Good or very good, occasionally moderate, perhaps locally poor.
Outlook from 00:00UTC Sunday to 00:00UTC Monday.
Wind
South to southwest 4 to 5, backing east to southeast later, becoming variable 1 to 3 later.
Sea State
Slight to moderate, decreasing smooth or slight with a low to moderate swell throughout.
Weather
Rain or showers, locally heavy with a risk of hail. Risk of mist patches near the French coast until mid-morning.
Visibility
Good or very good, occasionally moderate, perhaps locally poor.

Understanding the Forecast

The wind speed is given in the Beaufort Scale on an 8 point compass with a variability of +-45°. Terms commonly used in association with the wind and other parts of the forecast include:

Veering - a change of wind in the clockwise sense (up to 180°)
Backing – a change of wind in the anticlockwise sense (up to 180°)
At first – within the first 12 hours
Later – within the latter 12 hours
Occasional/occasionally – lasts less than half the time (location or time specific)
At times – non-persistent (lasts more than half the forecast period)
For a time – a transient state

Waves or sea state is the forecast of the mean of the largest 7% of combined wind and swell waves. Wind waves are locally produced waves; swell waves are produced by distant strong winds. Sea state descriptions equate to the following wave heights:

Description

Height

Smooth

< 0.5m

Slight

0.5 - 1.25m

Moderate

1.25 - 2.5m

Rough

2.5 - 4.0m

Very Rough

4.0 - 6.0m

High

6.0 - 9.0m

Very High

9.0 - 14.0m

Phenomenal

> 14m

Visibility measurements equate to the following distances in nautical miles and kilometers:

Description

Distance N.Mi

Distance Km

Good

> 5 n.mi

> 10 km

Moderate

2 - 5 n.mi

3.7 - 9 km

Poor

0.6 - 2 n.mi

1.0 - 3.7 km

Very Poor

< 0.6 n.mi

< 1000 m

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