Frost, snow and very low temperatures are expected next week.
Over 30 centimetres of snow could fall in places this weekend.
There's widespread frost and ice across the country this morning, with a nationwide status yellow low temperature and ice warning in place until 11 o'clock.
A weather advisory for sleet and snow will kick in at midnight.
Rhode's Cathal Nolan from Ireland's Weather Channel, says temperatures next week could go as low as minus 12 degrees:
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