Today sees the last of the frosty mornings for a few days at least. The minimum air temperature overnight was -2.2c at 01:44 hours and this has left us with a widespread frost. Care will need to be taken on untreated paths and roads.
There is, however, a change afoot. The jet stream will begin pushing across the UK after firstly “looping southwards. This will mean that more cloud will develop as warmer air from the southern regions mixes with the cooler northern air. The downside is that we are very likely to see some periods of rain over the next few days. The GFS ensemble chart suggests that this period of “milder” weather will last until the end of the month.
For today it will be a cool start but it will be a generally cloudy day with the cloud thickening as the day passes. The daytime temperature will increase to around 5c by early evening. Overnight the temperature will continue to increase slightly and by tomorrow morning’s drive time the air temperature will have increased to 6-7c.
The increase in air temperature will also mean that the risk of rain increases. We have a 60% risk of rain later today and by tomorrow morning the risk will increase to around 80%.
The synoptic charts are showing that the points of air pressure are becoming more closely spaced and this indicates an increase in the wind speed. The average wind speed today will be around 4mph this morning increasing to 8mph this afternoon and evening. The wind will be deriving from the SE for the majority of the day.
Summary: A cool day to start but increasing cloud cover will increase the air temperature and the risk of rain.
Observations made 06:28 hours Hammerwich, Staffordshire.
Temperature : -2.2c; Air pressure : 1019.6mb; Relative humidity : 89%; wind : calm; Rain this month : 44.4mm ; Rain this year : 44.4mm
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