The advisory warns of hazardous conditions until 10am on Wednesday morning.
A new status yellow fog warning for Laois, Offaly and Westmeath, has been issued.
It’ll kick in from 10 o’clock tonight, and remain in place until 10 tomorrow morning.
Beyond the midlands, counties Carlow, Kildare, Kilkenny, Longford, Louth, Meath, Cavan, Monaghan, Leitrim, Roscommon, Tipperary & Waterford all fall under the same warning.
Meanwhile, a named storm is tracking towards Ireland.
Met Éireann forecaster Andrew Doran-Sherlock has the details:
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