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Bridge bunting
Bridge bunting Picture by Peter Frankland
Today
High
19°
Low
12°
0%
F3
Tomorrow
High
21°
Low
13°
0%
F3
Wed, 30 Apr
High
21°
Low
13°
0%
F2
Thu, 1 May
High
22°
Low
13°
0%
F2
Fri, 2 May
High
19°
Low
13°
10%
F2
Sat, 3 May
High
17°
Low
10°
5%
F3
Sun, 4 May
High
17°
Low
10°
5%
F3
Morning, Today
High
19°
Perhaps some mist at first, otherwise sunny.
0%
6
UV
F3
Easterly light F2 to 3, perhaps occasionally moderate F4.
Sunrise 04:56
Afternoon
High
19°
Sunny.
0%
6
UV
F3
Easterly light F3, occasionally moderate F4, especially in Alderney, backing northeast for a time.
Sunset 19:21
Night
Low
12°
Clear.
0%
F4
East moderate light F3 to F4.
New

Shipping Forecast

General Situation
At 18:00UTC high, 1027mb, Channel Islands, expected 1028mb, near Denmark by midday Tuesday.

11.8°C
Sea Temperature

Forecast from 00:00UTC Monday to 00:00UTC Tuesday.
Wind
East to northeast 2 to 3, increasing 3 to 4 by midday, occasionally 5 later.
Sea State
Smooth or slight, with a low swell.
Weather
Local mist patches, with a risk of fog patches mainly near the French coast, clearing by late morning.
Visibility
Moderate to good, occasionally poor, perhaps locally very poor.
Outlook from 00:00UTC Tuesday to 00:00UTC Wednesday.
Wind
East to northeast 3 to 4, occasionally 5 at times.
Sea State
Smooth to slight, with a low swell.
Weather
Fair.
Visibility
Good or very good.

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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