London, England, United Kingdom Severe Weather Alertstar_ratehome

Patchy, dense fog is expected to develop during Saturday night with the visibility falling to less than 50 metres in places. Fog is expected to become increasingly widespread within this area during the second half of the night before only slowly clearing during Sunday morning; slowest across parts of the West Country and central southern England.

For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings