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The ICON has further Low Pressure tracking across the UK, by Thursday night Friday and Saturday- and looking at further Low Pressure linking to that one in the NW Atlantic ready to track in behind it maybe to the UK from Northwest N. Atlantic Sea.
GFS FI, T180, UK sees heavy rain and Deep Low Pressure tracking across from the North Atlantic Sea, Monday and Tuesday Cyclonic West NW winds and very cold T850's, rain sleet and snow showers expected if that happened, Jan. 28th and 29th January, another Short wave Deep Low join this parent Low, tracking across the UK on January the 30th et all, and lasting to Thursday 31st, with further cold plunge with rain to snow possible.
Further down, cold with widespread night frosts and Southerly tracking LP's from West to East across the South of North Atlantic moving west to east with High Pressure in Northwest N. Europe and North Atlantic Sea as well come early February- 12z GFS is showing it.
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Climate is warming up, Scotland and N Ireland and North England still often gets some Winter frost, ice and snow, November to March, but the SE and South UK including S Central England and Wales, together with the West and North through the year, they sometimes get more rain than London and S SE England, where some longer dry fine spells without much heavy rain is seen every year.
The North Atlantic Sea often gets some much Colder Wintry conditions from November to March Months, and Mild SW and South winds tend to be more frequent over the East and SE of North Atlantic Sea, as the Azores High tends to stay in charge.
With this warmth and heat, the Central and South UK has become mostly free of snow and frost.