Cork County Council has urged motorists to “exercise extreme caution” when travelling in this weather. They made no comment in relation to flying sleighs, however.
Carlow-based weather expert Alan O’Reilly is optimistic for a snowy holiday.
“Beyond December 18 there’s a lot of uncertainty, there’s at least a brief milder spell but the cold could return,” he said.
Met Éireann’s Aoife Kealy said: “It’s too early to say” but cautioned about persisting cold.
“The current indications point to it persisting. It will be nationwide. Temperatures will struggle to get above freezing during the day and will dip to well below freezing by night.”
A status orange low temperature and ice warning is to come into effect tomorrow afternoon for all of Ireland, bringing "severe frost and icy stretches".
The warning, which was published this afternoon by Met Eireann, warns of patches of freezing fog also.
It comes into effect at 5pm tomorrow and will be in place until midday Monday, with temperatures likely to fall below -5C in many areas.
• Met Éireann advises that up to date information on dealing with this cold snap can be found on the WinterReady.ie website.