Met Éireann has issued a Status Yellow rainfall warning for seven counties today, Wednesday, August 12, with accumulations of up to 30mm expected.

The alert was issued at 12:00pm today, and will come into effect tonight at 8:00pm. It will remain valid until 9:00am tomorrow.

The warning will affect counties: Kilkenny; Wexford; Cork; Kerry; Limerick; Tipperary; and Waterford.

In these counties, the national meteorological office said that heavy thundery rain late this evening and overnight will lead to accumulations of 20 to 30mm.

Torrential downpours in places may lead to spot flooding, Met Éireann added.

Meanwhile, a Status Yellow environmental warning has also been issued for blight.

Conditions conducive to the spread of potato blight will develop this evening in coastal counties and continue for the rest of this week, developing more widely through Munster later Thursday, the forecaster says.

There is an opportunity for spraying this afternoon and limited opportunities in northern areas Thursday and Friday, it was added.

For the country in general, Met Éireann notes that it will be mainly dry this afternoon with a mix of cloud and sunny spells, and mist lingering in a few spots.

Showers will move into southern counties this evening, some of them heavy and thundery in places. It will be warm and humid with maximum temperatures of 22° to 27°, but a few degrees cooler on northwestern coasts in a light to moderate northerly breeze.