Bizarre fog blankets Cornwall beach despite forecast for sunshine

A bizarre weather phenomenon may have caught visitors to a Cornish beach by surprise, despite the sunny weather forecast. Fog rolled in over Porthminster Beach in St Ives this afternoon, leaving visibility low.

Elsewhere today (May 19) it was sunny and warm, reaching highs of 18C. It comes after heavy rain and storms on Saturday which saw flooding in some areas of Devon.

According to the Met Office, coastal fog usually forms when relatively warm, moist air passes over a cold surface. In the UK, the most common occurrence of coastal fog is when warm air moves over the cold surface of the North Sea towards the east coast of the UK.

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It said: “The impact, location and movement of coastal fog depends on a number of conditions including wind strength, wind direction and terrain temperature. If the terrain temperature is warm, the fog can dissipate quickly as the air pack heats up. , if the ground temperature is colder, the fog can persist longer.”

Forecasters in Exeter have predicted low cloud and fog early this morning, which could persist over the Isles of Scilly. He added: “Otherwise a much warmer day than Saturday with lots of bright sunshine. Isolated showers are possible this afternoon with the odd thunderstorm likely in Cornwall. Maximum temperature 22 °C”.

Meanwhile, this evening it said pockets of mist or fog could form and with low cloud. It is also forecast to turn cold locally with a minimum temperature of 4°C.

The forecast for the coming days calls for more cloud and some showers throughout, but there will also be plenty of sunshine and warm temperatures, reaching highs of 21°C on Monday (May 20).

Months:

Some low cloud is possible at first, especially in the east. This gradually rises and clears to let in plenty of strong sun. Very isolated afternoon showers are possible. Sensation of heat. Maximum temperature 21 °C.

Outlook for Tuesday through Thursday:

Somewhat cloudier at this time, but still warm during sunny spells. Showers are likely at times, heaviest on Tuesday when thunder is possible. It may remain dry in places.

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