The advisory is effective beginning at 3am tomorrow.
Laois is coming under a yellow weather warning for rain tomorrow morning.
Met Eireann is warning of the potential for flooding with persistent rain expected to fall on already saturated ground.
The advisory is in place from 3am tomorrow morning, until 3am Friday morning.
The Laois Severe Weather Assessment Team says people in Portarlington and Mountmellick are at particular risk.
The river levels currently are below the media level in these towns and county council says it will issue further advice if the levels rise in the coming days.
Planning Permission Approved For New 800 Pupil Secondary School In Midlands
Annual Rose Of Tralee Tour Underway
Longford-Westmeath TD Urges Action On Vacant HSE-Owned Buildings
Taoiseach Backs Offaly Camino Proposal
Laois Pride Launch Writing Competition In Memory Of Joe Drennan
Laois Truck Driver Arrested For Driving Overweight Truck Under Influence
Offaly Business Closed Over Food Safety Breach
Gardai Continuing Laois Meadow Fire Investigation