- Cold Temperatures
We can only really go to Monday night with much confidence in the smaller details however it will be a much colder week overall, there is no doubt about that.
Daytime maxima temperatures from Monday - Friday 0 - 5 c.
Minima Monday - Friday +1 - -7 c (coldest midweek)
The first real snowfall risk is from Monday evening nationwide as a frontal system tries to come in from the Atlantic. It will meet exceptionally cold air over Ireland and to our east - and - be followed closely by exceptionally cold air to our west.
As the cold air to the west "catches up" and mixes with that to the east the front stalls, occludes and has no further desire to live () except go out in a blaze of glory and apocalyptic snow bomb
Well, not quite...
To illustrate on Monday afternoon (you see here the two cold air masses meeting over Ireland) :
There are plenty of charts that have been posted in the model discussion thread here.
The front will stall and weaken but should give some snowfall before dieing out as it heads in to the Irish sea. This could be disruptive for Tuesday morning. Amounts too tricky to call at this stage - if I had to take a punt i'd go with 2 - 5 cm's to low levels for now.
Could yet be more but the midlands and east are most at risk.
There are still some differences between the models on Monday - some offer more extensive snowfall and colder temperatures than others.
*Night time temperatures will be very cold and well below freezing extensively - severe frost and ice and where snow lies temperatures will be even lower again.
We'll keep an eye on the rest of the week.
Sneak peek for Tuesday.
To recap bitterly cold from Sunday evening and for the rest of next week. Extensive frost and ice, snowfall at times, some disruption possible.
P.S If anyone would like to recommend a structure for these threads please do. It's a lot of information to try to get in to the OP to try and keep as simple as possible for you without doing a thesis