Make the most of this weekend’s push of milder air from the southwest ahead of the front because temperatures will crash from 11 or 12C over Scotland down to just 2 or 3C by Wednesday as the first blast from the arctic drops south.
Take a look at the GFS projected temperatures mid afternoon Saturday, Monday, Tuesday and Wednesday and look at how much colder it becomes. Temps are in F.
15z (3pm) Saturday

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50F is 10C.
15z Monday

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40F is 4C.
15z Tuesday

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35F is 2.5C.
15z Wednesday

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Check out the morning lows Wednesday before the mid afternoon temps above… brrr.

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So, what about snowfall? The big question is availability of moisture. It’s not going to be a question of whether it’s cold enough because I believe the air will be plenty cold.
Here’s the very latest GFS 144 hour snow chart!

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Yes, all areas in white, consider that as a possibility of seeing snow in the air. The blue, well perhaps a covering!
Here’s the 168 hr

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Let’s not forget our friends on mainland Europe.

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Yes, WOW! Snow is plentiful all the way to northern Spain.
Check out the GFS jet stream position at 132 hours. Classic -NAO..

As for the ECMWF 500mb/850 temps.
Mon 18

Tue 19

Wed 20

Thu 21

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