A low pressure area over Wales will bring strengthening SW winds

Those of you that awoke this morning to the sound of heavy rain only to step outside to bright sunshine received an early sample of today’s weather – the proverbial ‘sunshine and showers’. A low pressure area is currently over Wales and moving east, which is expected to deepen slightly from 1010mb to 1009mb throughout the day. This will give a W-SW flow over the Solent, expected to veer W-NW during the evening.

The effect on the wind is as follows, with gusts expected to be a third as high again as the mean wind speed.

0600-0900 SW 8-13kts increasing 10-15kts
0900-1200 SW 10-15kts
1200-1500 SW 10-15kts increasing 13-18kts
1500-1800 SW 15-20kts

Later in the evening and going into Sunday the wind is expected to veer to the north and decrease. Showers are likely throughout the day, and there is a possibility of thunderstorms.

Temperatures will be a moderate 18 – 20°C, matching the sea temperature of 18°C and insuffficient to generate a sea breeze later in the day. Visibility should be moderate or good except in showers.

Observations at 0700
Brambles Bank SW 8kts gusting 11kts
Chichester Bar SW 15kts gusting 18kts

High Water Portsmouth
0659 3.8m
1936 3.9m