Uppers aren't everything.
Second cold spell in 2010 from the Northerly Castlederg had temperatures of -5 or below continuously for 187 hours, that's almost 8 full days. 6 of those nights sub -15, a 7th time during the last evening of cold spell at 7pm, a low of -18.7,a daily maximum of -11. Another location near hand beat it with a maximum of -11.3. This won't come close to that anywhere, it was most extreme in Castlederg, not sure what all the values were further east but nothing remotely like that.
Also yr weather which uses the ECM model doesn't show anything extreme until day 10, pushed back that the previous ECM run.
Dublin maximums for next week with ECM
Monday 3c
Tuesday 4c
Wednesday 2c
Thursday-2
Belfast
4c,5c,2c,-2 for the same days.
So we're waiting until day 10 before we see anything extreme. I think people are getting carried away, yes other models look better but until ECM brings it in closer range I'd urge caution, day 10. The Western 2 thirds of the country look bone dry as well, unless a front from the Atlantic comes in. So much hype for this because areas that don't see much snow, will see snow. This won't be anything remotely like 2010.