Well a truly exceptional model output this morning particularly the ECM which would plunge Ireland into an extended freeze from this Sunday.
As it is so late in the season temperatures by day would rise to 3-5c but drop sharply in any wintry showers and by night drop well below freezing.
Wintry precipitation is likely as early as Sunday in parts as a low pressure system lies over Ireland giving periods of prolonged precip in places and also feeding in showers to coastal parts.
A surge of even colder air is then expected to advance from the northeast later Monday 18th March bringing wintry showers to eastern coasts and spreading inland.
From the period Tuesday 19th March to Saturday 23rd Ireland is expected to be in a deeply unstable arctic flow. Winds will vary but predominately be from the east and north. Some low pressure features may move south across the country at times giving prolonged periods of sleet or snow. Eastern and northern areas will be at risk of wintry showers/heavy snow showers throughout the period.
It is mid-March so snow-cover will likely retreat during daytime in any sunshine but there is still a risk of significant snowfall during the week with disruption likely to occur if the current model output materialises.
High ground will be particularly exposed with significant appreciations of snow likely in ground above 200m.
A few charts to wet the appetite.
This has a November 2010 feel to it.