Treacherous conditions are being reported on roads right across the country this morning.
Showers of hail, sleet and snow fell overnight in many areas, with a yellow weather warning in effect for every county.
That's due to expire at midday, and drivers are being warned to take particular care in shaded areas and on untreated roads.
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Alan O'Reilly from Carlow Weather says conditions could change very quickly throughout the day.