Arctic air persists

The thermometer struggled to reach a maximum of 4.6C on Wednesday as the Arctic air continued to be brought down on the northwesterly breeze. The low was 5.8C below my long-term average. It was a breezy day with a maximum gust of 15mph that produced a wind chill again so that just before midday the thermometer read 3.9C but the wind chill meant it felt more like 1C outside in the breeze. The very welcome sunshine lasted until late afternoon. The temperature dropped away steadily in the evening to reach a minimum of -1.8C at 22.56 before stabilising then slowly recovering to -0.6C at 08.00 on Thursday producing another air frost.

The cold air by day and night continues to slowly feed into the ground so that at 08.00 on Thursday the soil temperature at a depth of 5cm read 1.2C, the lowest since 3rd March 2024.

Thursday was another very dull start to a new day under thick cloud and air frost.

A depression has moved eastwards across the western approaches and predicted to be over Brittany by midday. This has brought the thick, low cloud and the reason that the temperature has lifted 1C overnight. The rain associated with this low pressure is perhaps twenty miles to the south of our region and will slowly move southwards as the day progress so hopefully the cloud will thin and lift after midday. This movement of the depression will see the airstream change from east northeast to north and eventually into the northwest and west as the day progresses.

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