Met Éireann has issued a status yellow thunderstorm warning for five counties for Monday afternoon and evening.
The advisory applies to counties Clare, Limerick, Tipperary, Laois and Offaly, and warns that scattered thunderstorms could lead to lightning and spot flooding.
The warning came into effect just after 1pm on Monday and remains in place until 8pm.
It comes as firefighters in north Co Wexford brought under control gorse fires that threatened homes and killed wildlife over an extensive area after a period of dry weather.
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A number of units of the Co Wexford Fire Service, aided by gardaí and locals, worked to halt the blaze, which was first noticed on Sunday afternoon on the eastern side of Tara Hill near Gorey. It spread rapidly across the hill overnight.
As it intensified, firefighters from Arklow, Co Wicklow, also responded and water was sourced from the nearby Ahare river.
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Speaking on Monday, Fianna Fáil TD for Wicklow-Wexford Malcolm Byrne said there were “seven fire appliances on the hill”. He described the situation as “deeply worrying”.
A helicopter flew over the scene at 12.40pm and dispersed water helping to reduce the fire and keeping flames away from properties in the vicinity. The multi-agency operation is continuing but is now a dampening down operation and fire units remain at the scene.
Locals had expressed concern for property and hopes for rain in social media posts.
Met Éireann said there was a chance of isolated showers near the east coast on Monday.
The forecaster said showers will develop more widely on Monday afternoon and evening, some of them heavy, and that there could be spot flooding and isolated thunderstorms.
The highest temperatures are expected to be around 22 degrees in the west, with light to moderate easterly or variable breezes.
After the showers, the rest of the week is expected to be mainly dry, with sunny weather returning. Conditions will likely be mixed and changeable later in the week with weather fronts moving in from the Atlantic next weekend.