Why is it so foggy? Find out why the fog is forming & what's in store tomorrow

WHY HAS IT BEEN SO FOGGY?

High Pressure is dominating our weather and it'll stay that way into next week. The current position of the High Pressure, sat right over us, means the wind is very light and the sky clear allowing temperatures to drop overnight. This light wind clear sky combo are perfect conditions for dense fog patches to form.

WHAT WILL HAPPEN TOMORROW AND THIS WEEKEND?

There are a few subtle changes though as the High pressure slips west into the Atlantic.

This shift will allow the wind to change direction to a northwesterly by the weekend and it will pick up slightly too. The increase in wind means we will see fewer fog patches but it will feel cooler too.

In the short term we have more fog to deal with tonight but also mild and sunny condition to end the working week.

Here is a summary of what's in store:

• THURSDAY AFTERNOON

• Fog lifting to reveal sunny spells

• Light winds

• Feeling pleasant at 13c

• THURSDAY NIGHT

• Clear skies this evening

• Temperatures will drop to 2/3c in towns and cities but freezing in rural locations

• My midnight the fog will start to reform

• It will be dense and extensive

• FRIDAY MORNING

• Tricky on the roads again with poor visibility

• The fog will lift quickly, faster than today

• It will be dry with sunny spells in the afternoon

• Temperatures climbing to 16c in the East Midlands and 14c in the West so feeling mild

• Light winds

• FRIDAY NIGHT

• Breeze will pick up, isolated fog patches

• SATURDAY

• Sunny spells, dry, breezy, feeling fresher

• SUNDAY

• Sunny spells slightly milder than Saturday

• NEXT WEEK

• Cloudier, odd spot of rain