Absolutely, it will always evolve anyway.
I admire you for putting out the prediction there, when you think the conditions required for significant snow at sea-level in Ireland are becoming more and more rare, in the last 20 years there have only been 3 winters in my memory where it has happened. And coastal places are even less likely than inland to see anything that will stay on the ground/not melt immediately or just be sleet.
My current thoughts are especially coloured by last year's (and the last few years since 2011) amateur experts debate where predictions of the required patterns were sometimes correct in general but still the more local/regional specfics meant we didn't get the sort of combination of cold & precipitation required.
It has indeed looked to be full of potential for snowy weather the last few weeks but long experience has taught me a few things, and one of those is never to be fooled by the buzz of November showing promising charts for snow!! (except for 2010! When the water in the Alexander Basin had ice on it by the end of November, probably something that last happened in 1987, maybe 91, and both of those times were in January, November so much more unlikely).