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Thanks There is some colder weather all the way from Siberia on the way for the weekend and for next week and this could bring with it very low temperatures and snowfall.
There is a 50/50 risk of
severe cold weather conditions effecting the country and a higher risk of moderately cold conditions nationwide.
However, despite the uncertainty potential is growing that the event could be severe in nature. The east and south are most at risk of some heavy and disruptive snowfall through next week.
Temperatures will fall away from Friday as an Easterly breeze becomes established, frosts will become more widespread and severe.
Potential hazards ahead:
Low Temperatures
Heavy Snowfall
Ice
Severe FrostPotential Warning Levels -
Yellow to Red
I'd recommend whispering to friends and neighbors, the elderly at this point without going over board and with the proviso that the forecast still be taken cautiously. Be sure to keep up to date and have a hot water bottle at the ready.



That is some serious stuff and very different to the type of Atlantic based cold periods we have had so far this winter. Worth noting these temperatures associated with this airmass (the upper air temperatures illustrated) are colder than any observed at any stage in both 2010 winters.
So yeah, not your typical cold incursion to these shores.
It will be a few days until we have rock solid agreement on the forecast from the computer models. For now they are converging on a potentially disruptive and maybe even severe solution.