Misty conditions may affect visibility overnight as temperatures drop, but forecasters expect the fog to clear quickly once sunrise arrives.
Fog patches are expected to develop across Kent overnight as temperatures fall and moisture condenses near the ground surface. This is a natural meteorological phenomenon that occurs when warm, moist air cools rapidly, causing water vapour to condense into tiny water droplets suspended in the lower atmosphere.
Fog forms when several conditions align: sufficient moisture in the air, calm or very light winds, and a clear night sky that allows heat to escape from the ground. As the earth’s surface loses heat after sunset, the air close to the ground cools below its dew point – the temperature at which air becomes saturated with moisture. When this happens, invisible water vapour transforms into visible fog.
Residents across Kent should exercise caution during the overnight hours and early morning. Visibility may be significantly reduced, particularly in low-lying areas and near water bodies where fog tends to settle. Motorists are advised to reduce speed, use dipped headlights, and increase following distances. Public transport may also experience minor delays.
The good news is that the fog should not persist. As the sun rises and provides warmth, the fog layer will gradually break up and disperse. Stronger March sunshine, once established, typically erodes low cloud and mist quite quickly. Most of Kent should see clearer conditions by mid-morning.
Key Information
- Fog patches expected overnight with reduced visibility in affected areas
- Conditions caused by warm, moist air cooling and water vapour condensing near ground level
- Exercise caution on roads; use appropriate lighting and reduce speed
- Fog expected to clear as temperatures rise after sunrise
