High pressure intensifies resulting in dense radiation fog this morning

With 7.43 hours of strong sunshine and a significant shift in the direction from which the air mass was originating, from north east to south west, Friday was a very pleasant autumnal day with the temperature easing up to a maximum of 15.6C being 0.9C above the average.

Friday was a calm day with the strongest movement of air logged at a maximum of 10mph, but often hardly moving under the high pressure, which intensified over the following twenty-four hours to reach 1031.3mb at 08.00 on Saturday, the highest pressure for almost a month.

A low of 3.1C was logged at 03.34 this morning that eased up to 4.0C at the time readings were taken at 08.00.

The Saturday dawn was clear and very still. However, just before 07.30 fog was observed in the distance at about 1,500m that slowly intensified that by 08.00 had become dense with visibility down to just 50m. This is known as radiation fog due to the air temperature dropping very low in still air allowing droplets of moisture to form in the atmosphere.

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