The status yellow warning will be valid between 5am and 10am on Saturday
Met Éireann is warning motorists across several parts of the country of difficult driving conditions on Saturday morning due to dense fog.
The forecaster, which has issued a status yellow fog warning for 11 counties, says poor visibility is likely in many places.
The warning for counties Cavan, Monaghan, Dublin, Kildare, Laois, Longford, Louth, Meath, Offaly, Westmeath, and Wicklow will take effect at 5am and will remain valid until 10am.
⚠️Yellow Fog Warning⚠️️
— Met Éireann (@MetEireann) November 21, 2025
➡️Affected Regions: Cavan, Dublin, Kildare, Laois, Longford, Louth, Meath, Monaghan, Offaly, Westmeath, Wicklow
⏳Valid: 05:00 to 10:00 Saturday 22/11/2025
Potential Impacts:
• Poor Visibility
• Difficult driving conditions
ℹ️https://t.co/t2JoveSsoa pic.twitter.com/HUoOhEFIN2
The warning from Met Éireann comes after much of the country experienced freezing conditions earlier this week.
Overnight temperatures dropped as low as –5 degrees on Thursday, resulting in heavy frost and some snow falling on higher ground.
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The Road Safety Authority is urging all road users to be vigilant and to ensure their vehicles are safe to drive during any bad weather.
⚠️Yellow Fog Warning⚠️️
— Met Éireann (@MetEireann) November 21, 2025
➡️Affected Regions: Cavan, Dublin, Kildare, Laois, Longford, Louth, Meath, Monaghan, Offaly, Westmeath, Wicklow
⏳Valid: 05:00 to 10:00 Saturday 22/11/2025
Potential Impacts:
• Poor Visibility
• Difficult driving conditions
ℹ️https://t.co/t2JoveSsoa pic.twitter.com/HUoOhEFIN2
Motorists are also being advised that fog lights should only be used in dense fog or falling snow.
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