Tuesday was a cold and murky day with the minimum of 5.4C being 2.6C below the long-term average thanks to the northerly airflow, but thankfully light, with a maximum gust of just 16mph. The thermometer dropped away overnight, under initially clearer skies, to reach a minimum of 1.7c at 06.26 on Wednesday. However, this allowed fog to form that began to get more dense after daylight dropping from around 500m just after 07.00 to 200m at 08.00.
The air flow on Wednesday will come from the southeast as the last depression drifts away and a much deeper depression in mid-Atlantic has the UK lined up for Thursday bringing much more rain. The barometric pressure at 08.00 was 1018.6mb, the highest this month but will drop away as the depression closes in. The thermometer read 2.1C at 08.00 so no air frost.
