The alert, for Leinster and Munster, is in place until midday.
A Status Yellow fog warning for Leinster and Munster has been issued by Met Éireann.
Fog and freezing fog is affecting many areas this morning, fog will be slow to lift and may linger locally beyond mid-day when the warning is due to be lifted.
Brian Farrell of the Road Safety Authority is urging motorists exercise extreme caution this morning.
Offaly Woman Crowned Ms Ireland
Cleo Knight was named the winner on Saturday night.
Temperatures Set To Plunge After Unseasonably Warm Highs
Some parts of the country will see temperatures above 20 degrees today.
Young Breast Cancer Survivor Urges Women To Act On Symptoms Early
Roisin Molloy was living in New Zealand when she noticed a sore lump.
Westmeath Man Remembered As "Hard Working" And "Loved By All" At His Funeral
Kyle Geoghegan's funeral took place on Saturday.
Electric Picnic Organisers Warned Of Overcrowding Before Duke Dumont Set
Festival Republic twice asked Laois officials on Saturday to move DJ Duke Dumont to the Main Stage.
Offaly Singer Mourns Passing Of Mother
Popular Offaly singer-songwriter Mundy is paying tribute to his mother Antoinette.
HSE Spending Millions On Lab Outsourcing
A freedom of information request shows €2.3m is being spent in the Midlands alone.
Daniel Kinahan Due Back Before Special Criminal Court Today
He's been held on remand at Portlaoise Prison since being brought back to Ireland in August.
