Forecasters warn dense fog will carpet a large area of Connacht, south Ulster and north Leinster tonight.
Met Éireann’s issued a status yellow warning from ten o’clock tonight to noon tomorrow.
Cavan, Galway, Leitrim, Longford, Louth, Mayo, Meath, Monaghan, Offaly, Roscommon, Sligo, and Westmeath will all be affected.
