It's like an imaginary snow line isn't it lol!! I really think we are in for a good dumping tonight I'd say minimum 10cm above the marsh snow line. There just looks to be so much precipitation feeding up from France, then add in the e/ ene winds and convection and that's a constant fall of moderate to heavy snowfall!! It will also aid us that once the front reaches us properly it will be dark so temps should lower a little.