The latest weather models continue to indicate that a very unsettled episode of weather seems increasingly likely through Friday, according to Cathal Nolan of Midland Weather Channel.
On Friday, Nolan said, Ireland will lie under a very cold airmass with upper air temperatures between 5’8 degrees below average for the time of year.
Meanwhile, just off the south coast and approaching and developing low-pressure system will try to introduce much milder weather with upper air temperatures some 5'8 degrees above average for the time of year.
The difference between the upper air temperatures will lead to some intense precipitation, especially so through parts of Munster, South Leinster and the South Midlands, the weather channel outlined.
Up to 50mm of rain
“Rainfall totals over a large area will range between 20-35 mm with some mountainous areas seeing up to 50 mm.”
“Also, along the northern edge of the rain band there is a risk that the precipitation during some of the heavier bursts will fall as sleet or snow, with a risk of some small accumulations in some areas provided the temperatures drop sufficiently during the most intense precipitation.”
“Areas above 300-400-meters in altitude are likely to see some snow during Friday afternoon or evening.”
Areas most at risk
In a forecast, which Midland Weather Channel has produced in association with Lambe’s Oil Tullamore, Nolan stressed such precipitation falling on already pretty saturated soil will lead to an increased risk of some spot flooding, and the swelling of rivers.”
The weather channel predicts that the areas most at risk are southern and south-eastern coastal counties, along with Carlow, Kilkenny, Tipperary and south Kildare.
“Once the precipitation clears skies will clear and a widespread and locally severe frost will develop, leading to the formation of icy surfaces, which will cause some dangerous driving conditions on untreated surfaces over the course of Friday night and into Saturday morning,” Nolan concluded.