MOTORISTS are being urged to slow down as forecasters have issued a warning about the thick blanket of fog set to descend upon the country.
Met Eireann's Eoin Sherlock said that temperatures were expected to plummet as low as -2 degrees overnight, resulting in a heavy covering of fog across parts of Leinster, Ulster and Connacht this morning.
Forecasters last night issued a status orange weather warning about the conditions, which they expected to affect counties Cavan, Monaghan, Donegal, Dublin, Kildare, Longford, Louth, Westmeath, Meath, Leitrim and Roscommon the most.
"If the fog is in, you won't get frost, but if the skies stay clear you will. The fog will probably be there this morning, but the winds will pick up a little bit and that will help lift it in the second half of this morning," Mr Sherlock said.